What kind of ballast pumps on Supras/Moombas

A couple of my pumps are working sporadically, sometimes filling quickly sometimes not filling at all or slowly. Thinking it may be bad impellars - what brand are the pumps and where can I get replacement impellars.

Also, there are tiny little knob/switches on the sides of the pumps - any idea what these are?

Cheers, Jeff

the pumps, are rule pumps....just buy a new pump...they run abtou $20.

Unless you are talking about the valves manifold?

You could have vapor lock happens in my Moomba every once in awhile.

Jeff, I assumed you checked to see if your pump were working, also assumed you knew that you have to prime those pumps to get them to work. John is right, while it's nto called "vapor lock" the pumps need to be primed. get up on plane and turn yrou pumps on ...water shoudl start flowing.

to add to what they said above the little black switch (black plastic) on the manifold (grey plastic) needs to be in right position. I think there are 3 settings.
1 closed off
2 open only when ballast switch is on (THIS IS THE ONE YOU WANT)
3 always open where the bags will fill automatically when you are driving even with switch off.

there might only be the last 2 positions... can't remember.
and definitely get up on plane and then turn them on. ballast will fill much quicker when on plane too...

(Message edited by tyler97217 on June 27, 2007)

Thanks guys.

To clarify I'm talking about the individual fill pumps. The main pump supplying the manifold is the rule - this seems to be working okay. The ones I'm concerned with are the 3 grey ones that fill each of the 3 bags - they are on the main manifold that is fed off the main rule pump.

Had an issue with auto filling so I changed the little switches. These confuse me though - there are no preset positions, just more like a 90 degree dial range. Stopped the auto fill problem, but may be off now?

Jeff

if i remember correctly they should be at a 90 degree angle to the manifold... not 100% until i get to look at it though

It's very common for these pumps to need to be primed. Like they said you can just get on plane for a moment to get them going. Its just like a fat sac pump. Air in the line makes it run slower or not at all. FYI the bags need to be burped once and a while since air will take up a little space in the bag. As far as the small black lever. If I am not mistaken. They are just like your home sprinkler anti siphon valve. Up is on and down is off. Have fun and good luck.

You only have one fill pump.
Then you have three solenoids on the manifold. the '3 gray ones' are your solenoids.