[CraigDiver]

Just about to replace impeller and gaskets however, pump base (which I cannot afford to replace right now) looks in bad shape. There is a bit of casting missing as shown in pic which is allowing water to pass from inlet through to outlet and externally. I intend to fix this with a metal repair compound.

What are the two relief slots for, it look like it allows water to travel between pump outlet and external - will this not have an adverse effect on water pressure to powerhead?

I have noticed many of the newer models have plastic parts rather than this cast aluminium/alloy one - is there a plastic replacement?

Any advice much appreciated (yes, I know buy a new base - but cannot afford and want to get motor running for a couple of months, then will replace with new part)

[Laddies]

The relief slots as you call them are for drain down to keep the base from freezing in cold weather, yes we both know you need a pump base, but all us have been there as far as money so fill the whole void with what ever filler you plan on using and sand it off on a piece of glass with sand paper on it and lets hope for the best

[CraigDiver]

Originally Posted by Laddies

The relief slots as you call them are for drain down to keep the base from freezing in cold weather, yes we both know you need a pump base, but all us have been there as far as money so fill the whole void with what ever filler you plan on using and sand it off on a piece of glass with sand paper on it and lets hope for the best

Thank you - great advice, the two locating pins are sitting proud of the casting preventing me sanding it down accurately on glass. Can these be removed, are they just push-fit?

CraigDiver

[Laddies]

Yes, they normally can be pulled with dikes, lf not cheat it with a good file