Adding Ballasts to Gravity III package on 2006 XLV

[MichaelH]

Hey guys, I'm pretty new to adding ballasts and to boats since our 2006 XLV gravity games edition that we bought came with the gravity III package but after a few years with it I'm just trying to get a little extra out of the wake.

I'm pretty sure I'm going to replace the rear passenger side locker with an 1100# Fly high sac since surfing has probably been what we use it most for and that should really sit the back corner down. This is specifically what I was planning on and hoping that it will be able to keep everything out of sight (that is definitely top priority). http://www.wakemakers.com/supra-and-moomba-750-rear-upgrade.html

I might also swap out the other side (driver side rear locker) for a 750# one to partially fill for surfing then fill completely for wakeboarding, do you guys think that would be a good step up from the g III package that has either 250 or 400# bags back there? sorry I can't remember off the top of my head.

With all that weight in the back I've read that the front definitely needs to be weighed down or else the wake will get washed out too early, so I was wondering if there is anyway that I can kind of like daisy chain a couple bags together off of the hose/pump that is already ran to the center bag in the basement? Basically just wanting to buy an extra, I don't know like 250-400# bag, or maybe just move the bag from one of the rear lockers right now up to in the bow and somehow tap into the hose pumping into the center bag. Is this possible? I'm in college right now about 4 hours from my boat thats in storage right now so unfortunately I can't look at things first hand or take measurements so hopefully some of you could help me out with what I can look into buying for my first ever winter upgrades :D

Oh and I have read so far that with all that extra weight a new prop is a really good idea so I planned on purchasing an Acme 1235 along with the ballasts when I make that purchase.

[brain_rinse]

You are definitely on the right track. If you are going to buy a new bag for the drivers side anyway, I'd say go with another 1100. Your goofy surfing friends will appreciate the few extra bucks you spent. You might consider getting this bag and adding a few feet of hose to make your own setup for less money: http://www.wakemakers.com/wakemakers-50-24-24-ballast-bag-1100lbs-4836.html

If you've still got the original ballast pump system you are in for a painfully long wait. Consider this: http://www.wakemakers.com/supra-moomba-ballast-system-upgrade.html

Acme 1235 is a proven winner.

Don't forget about the 10% Moomba discount!

[jmvotto]

The 1180 in the center locker aka the basement is also highly recommended for the X.

[MichaelH]

You are definitely on the right track. If you are going to buy a new bag for the drivers side anyway, I'd say go with another 1100. Your goofy surfing friends will appreciate the few extra bucks you spent. You might consider getting this bag and adding a few feet of hose to make your own setup for less money: http://www.wakemakers.com/wakemakers-50-24-24-ballast-bag-1100lbs-4836.html

If you've still got the original ballast pump system you are in for a painfully long wait. Consider this: http://www.wakemakers.com/supra-moomba-ballast-system-upgrade.html

Acme 1235 is a proven winner.

Don't forget about the 10% Moomba discount!

Cool, that's nice to hear that I have the right idea going. How easy is it to extend the factory hose instead of buying the preassembled extension that I linked to? It looks like I could save $50 per rear bag if I just extend it myself but I'm not too confident in myself to be able to do it correctly unless its really as easy as cutting it, putting in a coupler and then clamping in the extra hose.

As far as the upgraded pumping system goes I'm gonna have to pass for now since that about how much I wanted to spend in the first place for adding bags and the prop. Is there a kit that I could get to just get a quicker pump? I'm definitely getting cold feet to cut through the hull too.

What do you guys think about adding a y splitter before the center bag right now and run the additional hose to my extra 400# bag in the bow? That would be along with the 1180# one in the center locker.

[MichaelH]

The 1180 in the center locker aka the basement is also highly recommended for the X.

I'm pretty sure that's what is in there right now, whatever came with the gravity iii package. It just seems like it's really centered in the boat and an extra one in the bow will help get the nose down and plow out more water for a longer, cleaner wake.

[jmvotto]

I had a 650 on top and it helped a bunch, do to the bow configuration the ibs work , so I am adding two 260 side bags to the bow . I forgot the Gravity package upgrade was the 1180 and 565 in the rear..

[MichaelH]

I had a 650 on top and it helped a bunch, do to the bow configuration the ibs work , so I am adding two 260 side bags to the bow . I forgot the Gravity package upgrade was the 1180 and 565 in the rear..

Ibs work? Sorry not quite following what you are recommending. What do you think is the best way to plumb the hoses to the front two bags?

[jmvotto]

Integrated bow sac.

With the reversible pumps I was just going to piggy back off the 1180 with a tee and tie in the vent , it will just take more time to fill.

[wolfeman131]

Sorry not quite following what you are recommending.

He's drunk on Sam Adams Cold Snap

[MichaelH]

So I could y split the hose leading to the center one and have it go to the center 1180# in the center locker then add this one I linked to have the extra hose to that?
http://www.wakemakers.com/fly-high-integrated-bow-sac.html

Would draining be the same? Also not sure what the vent does, at this point I'm just accepting that filling will take a while and I'll try to get that going early and maybe the first run will just be a warm up haha (that's okay to drive and fill at the same time right?)

[mikenehrkorn]

If you're planning to get an IBS I have a very nice used one in the classifieds......https://forum.moomba.com/showthread.php?25604-Used-IBS

[brain_rinse]

...I'm not too confident in myself to be able to do it correctly unless its really as easy as cutting it, putting in a coupler and then clamping in the extra hose. Yep, it's really that easy and Wakemakers will have the coupler and clamps you need as well.

[brain_rinse]

Also worth noting that if you don't upgrade to reversible pumps you will have a hard time doing a piggy-back bag in the front. An aerator pump isn't going to fill or drain an overflow bag properly. You may also want to do the math, but relying on one stock aerator pump to fill a rear 1100, some weight in the opposite corner, another 1100 up front, and yet another front bag would be an amazing amount of time.

I wouldn't add anymore weight upfront until you address the ballast pumps. So 1100 + prop first, then pumps, then extra front weight. Just my 2 cents. It's fun spending your money btw. :)

[MichaelH]

So what is the plumbing required for an ibs? I'm trying to keep it as simple as I can by splicing off of the center gravity iii fill and drain hoses. Is that possible? I know filling time will be pretty long but I'd rather have that than cut a hole through the hull myself.

For an ibs does it require a fill and drain hose per arm?

Sorry I'm asking so many questions guys, I just want to be able to do it right the first time and this is the first time I've ever added onto the stock system so I'm not sure how splicing into the existing normally goes.

[brain_rinse]

You really can't splice into the existing single aerator pump system. You can add new, separate fill and drain pumps, but relying on pump pressure to overflow to another bag, and gravity to drain isn't going to work. If you went with the IBS horseshoe shaped bag you would need a drain pump on each leg, and then add a diverter to switch filling from center to IBS. And you'd need to drill into the side of your boat to enlarge the thru hulls, or add new ones. Sorry man, no easy way to automate a big ballast system like what you want on a single pump. Maybe consider getting one of these for now to handle the additional bow weight and to help speed up the drain/fill times of the other bags as needed. http://www.wakemakers.com/fly-high-tsunami-pump.html

[MichaelH]

Yeah, that's understandable. It seems like the older style g3 package has it's flaws to begin with and trying to piggyback ontop of that would be really testing its limits. So if I still wanted to add in an ibs (which seems like the way to go to get the nose down) then I should add in a new pump system such as this.
http://www.wakemakers.com/kiss-complete-aerator-800-ballast-package.html

To be honest I am really worried about making more holes in the hull. Should I be so worried? It seems like alot of people here to it fairly regularly. It's not that I don't think I could install this kind of system (I've done alot of car audio installations so I'm comfortable with the wiring and the filling draining seems pretty straight forward) , its just that I want to know exactly how to do every single step before I get into it.

[jmvotto]

On my OBV 07 , I added a new switch and a 4 port to the sprinkler system for the direct fill of the IBS , but I had to add two new drain ports on each leg that went out the port and starboard. I a had a G1 to a G111 to a GIV,

[MichaelH]

Oh that'd be a good way to do it, can you give me any more insight on what you used to do that?

[trayson]

I'm pretty sure that's what is in there right now, whatever came with the gravity iii package. It just seems like it's really centered in the boat and an extra one in the bow will help get the nose down and plow out more water for a longer, cleaner wake.

Hey Michael. I've got a 2008 XLV so I'm pretty familiar with what you're dealing with. The gravity 3 ballast system has the 400's in the rear and about a 650 in the front basement storage. You could put another bag on top of the 650 and fill it manually with an over the side pump. However, Brain Rinse was correct that there's just not enough pressure in a aerator pump system to fill daisy chained bags.

Forget all this mumbo jumbo about "IBS" for our boats. They aren't designed for that. Our upgrade of choice is getting the 1180 gravity games bag for the front basement. Yep, that's a BIG bag and will be all you'll need up there.

http://www.wakemakers.com/fly-high-gravity-games-center-sac.html

When you talk to wakemakers, ask them about the Moomba forum discount. typically 10% off.

Okay, with the 1100 and 1180 bags, you're looking at LONG fill times. And there's really no 'easy/cheap' way to make that better. Adding reversible pumps will make the fill time for each of the bags ~10 minutes on the big bags. I went the route of using the 1200gph tsunami pumps which theoretically will be faster (maybe by a couple minutes) and THEORETICALLY will be less expensive. But honestly the margin of "savings" isn't huge once you add all the extra hose, fittings, etc that are required. Plus it's more cutting and more hassle for sure.

Okay, your fill pump is a single Rule 2000 that goes to a sprinker valve manifold to fill the 3 pumps. with those sprinkler valves and ONE pump, it's slow. like twice as slow as your other upgraded alternatives. I've heard that you can most certainly upgrade to the high flow irritrol sprinkler valves (search, you'll find threads on this). But it's just addressing one of the many bottlenecks on the factory system.

on the empty side, you've got three 700gph pumps. Again, SLOW!!!!!!!!!!! However, I have recently been thinking that a quick and easy upgrade for the drain side would be to replace them with the 1200gph tsunami pumps.

Here's some that are $34 each.
http://www.ebay.com/itm/ATTWOOD-T-1200-TSUNAMI-4612-4660-MARINE-CARTRIDGE-BOAT-AERATOR-PUMP-Regular-/381163335763?pt=Boat_Parts_Accessories_Gear&hash=item58bf1af053&vxp=mtr

You'd also need these fittings:
http://www.wakemakers.com/attwood-straight-t1200-3902-1.html

Of course, the problem with those fittings is that they're made for the 1" hose, so then you're looking at plumbing in a reducer to get it for use with the factory 3/4" hose.

They sell plenty of 1" to 3/4" barb reducers at plumbing stores, but again, you're nickel and diming yourself getting the 1" stuff to work with your factory 3/4" hose.

it's honestly a slippery slope. Because you COULD just replace your factory drain hose with 1". But then you're having to get new bag fitting, new quick connect hose fitting, and a new thru-hull for each of them. (a step drill bit would be excellent for enlarging the hole to go from a 3/4" thru hull to a 1 1/8" thru hull.)

every bag fitting or connector or thru hull that's plastic is easily $6 to $9 each.

Another approach would be to get the above pumps and get these adapters (instead of the barbed ones) http://www.wakemakers.com/fly-high-pro-x-series-fitting-w747.html and then go to your plumbing store and get a 3/4" female to 3/4" barbed connector. that might work decent and be cheaper and let you still use your existing 3/4" hose (if you don't want to mess with the hose and thru-hulls.) that would get you a drain system that's faster than the 700's in there now, but not as fast as if you went with 1" hardware.


So, if you have all the right fittings and adapters, it's "relatively" easy compared to changing out the fill side.



Now, I'll also suggest another idea that was a "bandaid" to the GIII ballast system that I used for a few months.

Currently, for each of your bags, you have a fill and a drain hooked up. The factory system didn't use a vent line. Instead of just having a PLUG in the bag, change the plug out to a fly high quick connect port:
http://www.wakemakers.com/fly-high-pro-x-series-fitting-w730.html
http://www.wakemakers.com/media/extendware/ewminify/media/inline/3a/d/fly-high-fittings-33030.jpg

Then you can use an over the side Tsunami pump to supplement the factory SLOW GIII system on the big bags.
They also make a "check valve" option for the above fitting that makes it so you spill a TON less water. But they aren't cheap and add up as you need one per bag!

Either way, if you use the fly high quick connect fittings, you have the ability to use it as a manual vent and also to have a throw-over pump piggybacking on the fill and empty.

Yeah, it's a hassle, but it will cut your fill/empty times in half or better.

This is The basic tsunami pump for $99
http://www.wakemakers.com/fly-high-tsunami-pump.html

If you want, you can buy one of the pumps I linked you above ($34), but this hose/fitting piece ($25)
http://www.wakemakers.com/fly-high-tsunami-pump-hose-extension.html

and then buy this fitting:
http://www.wakemakers.com/fly-high-pro-x-series-fitting-w744.html ($40)

and for the same price as the $99 pump, you've built yourself a pump AND got the better hose AND the check valve functionality. (okay, I guess you'd have to add some wiring if you want it to connect to a cig lighter 12v socket...)

But if you're not going the check valve route, then you could just get this fitting and "build your own" tsunami pump (w/o wiring) for $68. http://www.wakemakers.com/fly-high-pro-x-series-fitting-w734.html



Bottom line is that there's NO quick and easy fixes for the GIII ballast system as far as speed. beyond pretty much starting over, there's not a ton that can be done that isn't a bandaid with tradeoffs.

As far as capacity, 1100's in the rear lockers and the 1180 gravity center bag will be the best option. That's what I've done.

I'm sure I've probably overwhelmed you with options, so if you have questions, just let me know. And I can clarify anything above that I've spoken to.

-T

[trayson]

I'm pretty sure that's what is in there right now, whatever came with the gravity iii package. It just seems like it's really centered in the boat and an extra one in the bow will help get the nose down and plow out more water for a longer, cleaner wake.

If you want to verify for sure what bags your factory bags are, there should be a tag on the back of the bag that will have a handful of numbers on them. 6 of those numbers will be the dimensions of the bag. For example, somewhere on the 1100's it will say 502424 or something like that to show the dimensions of 50" x 24" x 24".

I know that my XLV had 400 sacks rear and 650 front. And I think that the 650 was an "upgrade" because there was a smaller front sack that was also included when I bought my boat.

I'll also caution you. the factory GLUED in the male quick disconnect flo rite fittings into the bags. Getting them out sucks and I almost ruined mine with channel locks and heat gun. So trying to remove those flo-rite fittings might mean risking destroying the fitting and/or the bag. The new bags don't come with the flo-rite fittings.

[bergermaister]

https://www.youtube.com/watch?v=qpW_x9MeAQo

If you go this route do not use a heat gun as they advise. Ask me how I know...

[wolfeman131]

how do you know?

do you have any pics or video of what happened when you used a heat gun?

can you provide a more detailed explanation of what you did, how you did it and what you might do differently in the future and/or any other options one might consider?

[MichaelH]

Wow thank you for the great write up trayson! I really appreciate the effort into helping me out here. I'm pretty sure that the center right now is 1180# though, I'm sorry I wasn't more specific before because I just saw that there is actually a difference between the gravity iii package and the gravity games package. My boat is the gravity games edition and that comes with the big center bag, does it not? If that that would be great because I would love to just be able to put 1100# bags in each spot and be set but right now I think I have the big bag already in the center and I'm still looking for some more front weight.

Sorry to be questioning you as you definitely have more experience with alot of ballast weight in this boat, but in your opinion I should be fine with 1100# all around? Right now if that's the case I think I will go with your "bandaid" method and just use a handheld pump to help out the stock pump. (Maybe throw one of the old 400# bags in the bow on surf side too and fill that with the handheld pump)

Edit: Also I really wish I could just go and check my bag and get back to ya about what size I have but I just can't get to it in person for a while since I'm going to school ~4 hours away.

[jstenger]

how do you know?

do you have any pics or video of what happened when you used a heat gun?

can you provide a more detailed explanation of what you did, how you did it and what you might do differently in the future and/or any other options one might consider?
I bet he got it too hot and melted the bag. I know that's what I did!!!

[trayson]

Wow thank you for the great write up trayson! I really appreciate the effort into helping me out here. I'm pretty sure that the center right now is 1180# though, I'm sorry I wasn't more specific before because I just saw that there is actually a difference between the gravity iii package and the gravity games package. My boat is the gravity games edition and that comes with the big center bag, does it not? If that that would be great because I would love to just be able to put 1100# bags in each spot and be set but right now I think I have the big bag already in the center and I'm still looking for some more front weight.

Sorry to be questioning you as you definitely have more experience with alot of ballast weight in this boat, but in your opinion I should be fine with 1100# all around? Right now if that's the case I think I will go with your "bandaid" method and just use a handheld pump to help out the stock pump. (Maybe throw one of the old 400# bags in the bow on surf side too and fill that with the handheld pump)

Edit: Also I really wish I could just go and check my bag and get back to ya about what size I have but I just can't get to it in person for a while since I'm going to school ~4 hours away.

No worries. I don't know which package mine had to be certain either.

I bought the 1180 bag over the winter, so I have never surfed it with the big center bag. The 650 when totally filled basically only went up as high as the main wider portion of that locker and didn't fill the slightly narrower top section (if that makes sense).

Also noteworthy IMO is that the 1100 bag won't completely fill in the rear locker because the trim panels that Berg says are supposedly there to protect your hoses...
Trim panel keeps forward part of bag from being able to fill completely.
https://lh5.googleusercontent.com/-jsdzOyBXd34/VOtd6EJJkjI/AAAAAAAAYDk/Jjh5RJRq7dQ/s640/20150222_141821.jpg

No trim, but Berg is scared I'll puncture a fuel hose or something, so I might just fab up some protection of some sort to protect my hoses so Berg doesn't lose any sleep.
https://lh6.googleusercontent.com/-3xGMC8BBtZs/VOtd1qPUJwI/AAAAAAAAYDU/APSEkQ4aPVY/s640/20150222_141852.jpg

That said, I've done the 1100 as full as I could get it in the surfside. to this I've done just the 650 center. I've also done the 650 with another 400 bag as filled as would fit on top of it. I've also added a 400 bag on the surfside seat. I don't have the optimal combo yet.

I will say that I took off the OEM swim platform and made my own that was smaller and didn't have the fiberglass lip on the bottom that was digging into the wake like a shovel and robbing me of push. I did this project on my last boat and repeated it on this boat.

I'm in the middle of a ballast system overhaul so we'll see how things go. I also intend on fabbing up a "ghetto gate" and putting that into the mix. Lots of stuff to play with.

I think that using a throwover pump to supplement the factory pumps is a great idea. It'll get you by with minimal cost and the portable pump is so much faster than the factory it's crazy.

I guess there have been others (Kaneboats) that have added a 2nd pump to their factory manifold system. I'd never thought of that. I'm probably going to have my factory Rule 2000 pump up for grabs. I was thinking about repurposing it into an over the side pump, but I've already got a Tsunami pump so I really don't need another over the side... I actually bought the fittings to make it connect to the fly high bags, so it'd just need the wires and a section of hose. But I hadn't even thought of selling it off until now, so if you're interested in doing a TEE like Kaneboats did and doubling your pumps lemme know. I could see a custom setup where you have 2 rule pumps that go to the high flow sprinkler valves as a "stage 1" upgrade. (have 1 pump for the front and the other pump for the two rears since you'll unlikely be using them both at once for surfing)

[trayson]

how do you know?

do you have any pics or video of what happened when you used a heat gun?

can you provide a more detailed explanation of what you did, how you did it and what you might do differently in the future and/or any other options one might consider?

From what I remember he ripped the port out of the bag. then he tried to fix it with 5200 and failed. Then he ultimately installed a "thru-hull" in that spot that was a smidge bigger and it's now holding.

Fly high says the bags aren't repairable, so Berg was in uncharted territory.

[jmvotto]

https://www.youtube.com/watch?v=qpW_x9MeAQo

If you go this route do not use a heat gun as they advise. Ask me how I know...

Watch the video again! No sign of a heat gun , hair dryer worked just fine and all the threads we great, did it on 4 bags from 2 different boats

[MichaelH]

Yeah there would be a big difference in results from a hair dryer compared to a heat gun haha

That's how you are supposed to loosen them up though? By using a hair dryer?

[jmvotto]

Yeah there would be a big difference in results from a hair dryer compared to a heat gun haha

That's how you are supposed to loosen them up though? By using a hair dryer?

Yep about 5 minutes right at the rubber gasket. The video by wakemakers is spot on.

[jmvotto]

Fly high says the bags aren't repairable, so Berg was in uncharted territory.

Berg is often uncharted:cool:

[trayson]

Yep about 5 minutes right at the rubber gasket. The video by wakemakers is spot on.

I used a heat gun. Mine has temp settings. Maybe Berg's did to? I bet Berg cranked his up to Eleven!

http://www.backwardglances.com/images/eleventee.jpg

[jmvotto]

I used a heat gun. Mine has temp settings. Maybe Berg's did to? I bet Berg cranked his up to Eleven!

http://www.backwardglances.com/images/eleventee.jpg

Funny I just revisited an old thread with amps that go to 11 from the PNW , must be something in the water up there ...lol

[viking]

Yeah there would be a big difference in results from a hair dryer compared to a heat gun haha

That's how you are supposed to loosen them up though? By using a hair dryer?

I've done it as well. Skeptical at first but worked like a charm!!

[kaneboats]

I guess there have been others (Kaneboats) that have added a 2nd pump to their factory manifold system. I'd never thought of that.

Well, you have to be an original thinker like me-- who had the foresight to copy Newty's design. :o

[newty]

Your welcome...

[jmvotto]

Well, you have to be an original thinker like me-- who had the foresight to copy Newty's design. :o



I copied Newty and Kane and worked well on the old system in the obv with the four sprinkler heads.

[kaneboats]

Your welcome...

Hey, I still appreciate it. I have a hybrid of Stacy's, yours and my own ideas and have a very fast filling system. In fact, it's so good it's keeping me from going out and getting a new Tomcat.

[bergermaister]

That's just the whiskey talking.

I prefer to fill up a nice pint sized night cap and head off to tinker on the boat in the dark after studying up on the forums all day. Makes that uncharted territory much more exciting and uncharted.



But yes, I melted the shit out of the bag fitting with my turbo charged heat gun in about 30 seconds. Had it turned up to 21 I believe, hard to tell it was dark after all. Just a nice glow of the embers and smell of liquid plastic.

I did end up fixing what they said couldn't be fixed though as was eluded to. Arm is still sore from patting myself on the back on that one. (yes I do that a lot)

I suppose if I had a ballast system that just flooded itself then I wouldn't have to worry about these silly fittings...

[bergermaister]

No trim, but Berg is scared I'll puncture a fuel hose or something, so I might just fab up some protection of some sort to protect my hoses so Berg doesn't lose any sleep.

It's no easy job saving you from yourself...:eek:

[newty]

It's no easy job saving you from yourself...:eek:
You ain't kidding,!

[trayson]

It's no easy job saving you from yourself...:eek:


You ain't kidding,!

Yep!!!! I know just enough to be dangerous!

[jmvotto]

as Kane said want to be original enough to copy someone's good work, the fat sac port fix came from me. which I stole from wake world, who stole it from tige forum, which was posted over there by our very own MLA,
Berg can take all the credit, though at least were the amps and heat guns go to 11... lol:o

[trayson]

as Kane said want to be original enough to copy someone's good work, the fat sac port fix came from me. which I stole from wake world, who stole it from tige forum, which was posted over there by our very own MLA,
Berg can take all the credit, though at least were the amps and heat guns go to 11... lol:o

Preach it brother!!!!

And it was GOOD.

[powerstroke99]

What I did on my xlv was ditched the stock rear lockers put in 750's , moved the old stock one to under the driver side passenger seat and the other one to the passenger side if need be, I surf goofy so this works. then I got a sumo sac 900 for the front bow I set on the seats, I fill the bow and old sacs with a over the side 1200 tsunami pump while the others are filling.. I ditched the old fill system for three separate 800 attwood pumps for each bag with there own thru hull source for water. reason being was cost to stick with the 3/4" size and not get 1200 with 1". it will still fill faster then stock. I also added vent lines to all the in boat sacs.. Currently this setup is working for me, not the fastest but it works. People willing to move around the boat works awesome too to played around with wave setup!

[MichaelH]

That definitely sounds like a solid setup, I just don't know if I can bring myself to adding thru hulls and trust that I am doing everything correctly. I don't know I know I will always just have a little bit of worry in me even if I know I did everything spot on. I think I'm going to go with 1000# bags in the rear lockers and in the center and use an over the side pump to help out the center one and maybe put the old 400# bag up under the passenger side bow and fill it with the over the side pump too. I'm guessing this will take quite a while to completely fill?

[trayson]

That definitely sounds like a solid setup, I just don't know if I can bring myself to adding thru hulls and trust that I am doing everything correctly. I don't know I know I will always just have a little bit of worry in me even if I know I did everything spot on. I think I'm going to go with 1000# bags in the rear lockers and in the center and use an over the side pump to help out the center one and maybe put the old 400# bag up under the passenger side bow and fill it with the over the side pump too. I'm guessing this will take quite a while to completely fill?

If you don't want to add another thru-hull, then add a 2nd fill pump on a Tee to the one thru-hull. Put the front pump to a sprinkler valve to the front bag. Then have the 2nd pump go to the remaining two sprinkler valves for the rear bags. (if surfing you probably will only be filling one of the rear bags anyway).

And replace your sprinkler valves with the high flow ones. Then you've doubled your pumps, you've cleared a restriction with the sprinkler valves, and you haven't had to drill any holes. Two pumps off the same OEM thru hull might not be as much capacity as is theoretically possible, but it's sure going to be a marked improvement over what you have now.

And then you can supplement from there with over the side if needed.

If you're interested in buying a 2nd rule pump, Let me know. I'm selling off my factory RULE fill pump that I removed recently.

[powerstroke99]

Honestly drilling through the hull wasn't to nerve wrecking as it sounds.. I drilled my pilot holes from the top to get my holes in the correct spots and the. Went underneath with the hole saw bits and was a breeze rest of the way..