whistling Lavac pump

[gtuson]

The pump on my Lavac often whistles/squeaks in use. Any ideas on what causes this and how it might be prevented? Its not the hinge between handle and diaphragm as it continues when pumping stops - so must be one of the valves? Incurable perhaps...A minor tribulatin in the great scheme of things....

 

[Searush]

It's air leaking in. A couple of possibilities are the anti-siphon valve or a loose pipe joint somewhere. Smear a bit of washing up liquid or similar around the joints. You will hear the tune change - or stop.

My advice is change it for a non-vacuum one & I will take it off your hands for spares for mine I need a new seat (Tee hee)

 

[cnh]

Are you sure it isn't the air vent? There should be a pinhole in top of the inlet pipe to allow air in. This will continue to hiss for a litle time after you've finished pumping.

Nicholas Hill

 

[macd]

Quite so. They whistle 'cos they're happy. But if it starts to whistle sea shanties, that's the time to worry.

 

[Norman_E]

Get a bit worried if it only whistles when SWMBO sits down.
Get even more worried if it only whistles when you sit down!
/forums/images/graemlins/laugh.gif

 

[pessimist]

Is it possible that it's the seal on the seat and not the pump? Ours does this from time to time . I think it's rather jolly.