Reversible ballast pump locations on '09 or newer LSV?

[cab13367]

How do you prevent auto filling on the rear bags? woulnt water just pass thru those aerator pumps and thru the check valve and fill the bags? are the rear bags above the water line? what about when underway does it force water into them?

I removed the stock 3/4" intake with the scoop and replaced it with a mushroom type 1" intake. Since there is no sccop, water is not forced up the line when under way, so a vented loop is not necessary for the rear bags. Just splice in a simple $14 check valve on the fill hose to prevent auto draining. The front bag is a different story. I tried a vented loop but it still autofilled when underway since the bag is below the water line. So I finally went to an Irritrol for the front fill line.

Thats the other great thing of the reversible pumps. one pump one line very simple system, no loops needed no check valves needed. no worrying about where you mount the pumps and whether there below the water line or the angle of the out put is correct... I got a few extra minutes to wait for the bags to fill with the slower pump.....

sort of like a set it and forget it deal.....

Well, I think there are pluses and minuses to both but to your points above: I didn't use any loops, 2 check valves is a nothing deal - $30 and 5 minutes and it's done, the three jabsco pumps are huge and you still have to mount them someplace, and I don't know what angle of the output you are talking about. If you are starting from scratch, you are right - the install is simpler on with the reversibles. But if you already have an old style GIII, you already have the drain pumps and hoses in place so it's not a whole lot of work to redo the fill side. But I understand that you are partial to the new system and that's cool.

Yeah. Set it and forget it is exactly what I'm going for. Although I do have to pay attention to the draining as I will not have timers to turn the pumps off...

Be careful with that. There have been many times that I hit the drain pumps then got to talking or swimming or listening to the stereo, etc. and ended up leaving them on for an hour or more running dry. No harm done on an aerator pump but you will fry your impeller real quick with the reversibles if you forget to shut them off. And you can't tell when they are empty since you can't see the water stop coming out of the thru hull.