Reversible Pump Upgrade

[moombadaze]

I have a quick question regarding the pump sound. I thought the pumps got louder or something when the bags finished draining??? I have no change in sound at all.


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David, I get a gurgling/bubbling sound when mine run empty -mine empty out the thru hull, other than that I never noticed a change in sound from the actual pump

[gregski]

Ha! I notice that as you turn more of the pumps on they slow down. That I can hear.

If you watch your volt meter, you'll notice that the alternator doesn't generate enough current at idle to keep the voltage at 14V when you run multiple pumps. I prefer to run the pumps while I'm slowly cruising away from the dock, otherwise I usually bump the throttle up a bit while in neutral (maybe 1250 rpm? I don't remember) and this will keep the voltage up. It's not critical, but the pumps are faster at the higher voltage and that's the change in sound you hear.

The pumps definitely change sound when the bags are empty, they speed up quite a bit.

[trayson]

I only have one reversible, but I can definitely hear the change in pump sound when it's empty. But I also spent the small amount of extra money to get the 2 check valves and the Tee for the above water line draining. I really like the visual.

[mmandley]

Dave saw your picture about your 650's filling the V drive completely.

IDK whats up with your bags, full of air? Stretched out? IDK but I can tell you for a fact, I ran 400, then 750, and then 1100 in my V lockers.

My 750s left room on top and my 1100 was the only ones that filled my lockers completely like yours.

[rdlangston13]

They are not full of air. I had all the air sucked out with a shop vac lol.


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[parrothd]

Why would you do that?

[rdlangston13]

I put check valves in the vents and just wanted to start off with a completely empty bag


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[mmandley]

I'm just saying Dave, Idk how do many people have 750, 1100 in their boat but yet your boat is the only one that is completely full on a 650.

Good side is you got full lockers of ballast no matter the size.

[moombahighrider]

I'm just saying Dave, Idk how do many people have 750, 1100 in their boat but yet your boat is the only one that is completely full on a 650.

Good side is you got full lockers of ballast no matter the size.

☝️That's funny but I agree. I have an 2008 lsv and run 1100's in the rear lockers. I tried 750's but it wasn't enough / didn't fill the locker and had to upgrade. Dave, I'll sell you my 750's that I still have, I have no use for them. The 1100's fill the locker just right...

[rdlangston13]

I think I am just fine with my oversized 650s haha


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