A shower pump that turns on for no reason.?

Question

We recently had a new (B & Q) shower pump fitted next to our water tank to send water to the shower which is abvout six feet away. The shower works OK but *increasingly) the pump is turning on for a few seconds when hot water is run off at a different point (like the kitchen). 
Why is it doing this?
It may have something to do with some sort of lack of a thermostat for the hot water (apparently).

Anonymous · Accepted Answer

The pump is not fitted properly . An essex flange or an S flange should have been fitted to the cylinder so the pump is the first draw off, which would mean the pipe to the pump would always be full of water.Aseperate cold water tank connection shold have been put in on the opposite side of the storage tank from the cold feed to the H.W cylinder to supply the cold connection of the pump.The other possibility is you have a small leak.

Bob the Boat · Answer

I am no plumber, but there is a similairty with my electronics job.

Sounds like you should have a "diode" in the feed line, electronically speaking, but in plumbing terms it is a one-way valve, between the tank & the shower.

Some component is missing, probably a valve

paul s · Answer

if you think about it the pressure is towards the shower when the pressure is taken off the other side off it, it loses pressure on the suck side and without a check valve so it can't lose this pressure it will keep happening

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A shower pump that turns on for no reason.?

3 Answers