thruhull question

[moombadaze]

Daze - if I had to do it all over again I would do dedicated thru hulls to feed each pump independently of each other. Granted I'm not running reversibles and the T-1200s may have a higher flow rate, but I bet even with a lower flow pump on 1" lines one will be greedier than the other. Physics, mechanics and all hydro-engineer BS aside, that will be the real world effect.

Then there's the not worrying about which pump is running at what time and potentially conflicting with empty/drain operations...

My .02

I agee with everything you wrote, ive thought of most of them. Biggest issue is being able to drill the hole and have it be perfectly in place, looks like if im off a 1/8-1/4 inch and ill be screwed for being able to work the ball valve handle. If I can get away without absolutley needing it then it may be the best solution. I may run the 2 pumps off one thru hull and see how it works, if it doesnt work out i can allways add the xtra thruhull and replace the pumps very easily. i have a xtra thruhull and ball valve too if needed.

[bergermaister]

Have you looked at doing a 90 off the thru hull and then to the ball valve sitting horizontal?

I'm actually planning to separate my pumps sharing a single thru hull and go dedicated to each before next season. May go that route due to space issues.

[moombadaze]

Have you looked at doing a 90 off the thru hull and then to the ball valve sitting horizontal?

.

Yep, sat there for what i swear was a hour with thruhull,ballvalve in hand, trying to figure a good place. Not even sure a 90 before the ball valve would help much, the water intake and giant ball valve for the motor is my biggest space issue

[bergermaister]

Pretty sure mine doesn't have a ball valve on the raw water intake. Just take it off and go direct - problem solved!


(Warranty? We don't care about no stinkin warranty....)

[moombadaze]

Pretty sure mine doesn't have a ball valve on the raw water intake. Just take it off and go direct - problem solved!


(Warranty? We don't care about no stinkin warranty....)

Dont think my 08 had one either, this one does and boy does it takes up space

[chadjitsu1]

I actually did a bunch of testing with johnson pumps and using a Y and a T fitting. You absolutely get better flow and quicker fill times in your bags if you just use one pump per bag.

Ideally if you surf a lot or are concerned with weighting the boat from one side to the other then I would add a 5th pump that is connected between the two v drive bags in the back that just pumps water back and forth. If your surfing on one side and want to switch you could easily just flip a switch to move water from one side to the other wile emptying the side your moving water from and filling the side your moving water to. It sounds complicated but between the two back bags you would actually have 3 pumps. I am actually thinking about doing this mod now just because even with the upgraded 4 pump johnson system switching surfers is a total pain in the butt. That mod would absolutely cut the time in half.

Also if your wakeboarding and one side is washed out you could easily just move water from one side to the other to clean it up. Lots of cool stuff you could do.

[moombadaze]

Im pretty sure I have only had one person ever surf goofy behind my boat, so fast switch out times are no big deal for me. I did get out this weekend and test everything--my under seat bag filled in about 4 minutes, when it was full I started filling the starboard rear bag for a little offset weight-both using the same thru hull, all while the 1100 was filling. for me this worked perfectly as Ive cut down fill time and increased one bag in size.

I did not drill any holes or make any permanent mods to the boat, some future owner may like that