How many GPH are the stock 2001 SAN ballast pumps?

[bsnively]

I was wondering if anybody knew how many GPH the stock pumps are in the 2001 SAN...

I did some searching, found one post about upgrading them, but didn't know the specs of the stock system. I understand that sometimes people upgrade to a reversible pump for other reasons too...but looks like some upgraded the aerator system w/ a faster aerator pump...

Thanks,
Ben

[crobi2]

The original atwoods were 750's, they have been replaced with a cartridge type that is 800. They are simply bait well pumps that you can pick up from academy or even Walmart. Wake makers has them for $25 and I'm sure white lake can hook you up.

If you want to upgrade you need to find something with 3/4" thread and doesn't draw so many amps that it kills your keypad (I guess you could install a relay). If you are going to do that though, maybe you Should just get some impeller pumps.

The system was pretty goofy on the '00 & '01, with the pumps hooked together in tandem to fill/drain the tanks.

Maybe it's time to just yank all that stuff out of there and go with 750# bags along the engine, a 600# locker bag, and an integrated bow sac under the front seats. Oh and a new prop to get it all on plane. If you can ride at least 21.5mph you will get to enjoy one of the most incredible wakes ever.

[s_kelley2000]

Maybe it's time to just yank all that stuff out of there and go with 750# bags along the engine, a 600# locker bag, and an integrated bow sac under the front seats. Oh and a new prop to get it all on plane. If you can ride at least 21.5mph you will get to enjoy one of the most incredible wakes ever.

My boat did not come with factory ballast so I was starting with a clean slate but these bags are the setup I have and I love it. I still need to automate it with reversible pumps but the additional storage and ease of engine maintenance with bags vs tanks is night and day. Even when the 750s are full I can still get quite a few vests, ropes, etc on top of the sac.

Unless your pumps are very worn out I don't think you will see much benefit in upgrading from 750-800 gph but you may be able to use the 1100 gph attwoods and see a benefit. But definitely make sure the factory wiring is up to the task or use relays like suggested above.

[bsnively]

Great info, thanks guys.

The thing that concerns me w/ swapping out to the 750s -- and not doing the pumps right away is how to control flow for wakesurfing/etc....

The more and more I consider it and read about the other posts on the forum, the more I am leaning towards just running two new pumps and getting rid of the valve/breather tubes/etc...

Thanks again for the great info,
Ben

[crobi2]

Yeah, if you want to stick with aerators for a while and still use bags, you just have to put an inline valve on the fill hose(s) or you can just crank it off at the seacock. Since it is a SAN it ought to have a good handle for shutting off that through hull.

Or you can just bite the bullet and do the whole setup with impeller pumps and new thru hulls and independent switches. If you do, you'll never regret it.

EDIT: I originally had a setup sort of like that, but I always hated having to raise the hatch to mess with valves. Now with impeller pumps I have a built in valve (vanes on the pump) that does not let water past even though my thru hull is a scoop. I actually use aerators at the bottom/back of the bags for draining because I love watching it all drain (many more through hulls) and I can just hit the switch and forget about them because the aerators can run dry without burning up.