Intermittant shower pump - float or switch?

Sometimes my shower pump decides not to start. Before lashing out a week's salary on a nice new Stuart Turner Monsoon 3 bar pump, I wondered if I could fix my old Screwfix special. Could it just be that the 'floats' are sticking in the flow sensors or that the reed switches are getting old? If I wave a magnet in front of either of the reed switch, the pump will start and, generally, continue to run.

Should I try and source a couple of new switches or disconnect the pump and clean out the 'float' chambers? Or should I just buy a new pump (I hate waste..!)?

Clean the filters on the incoming first.

It seems to be working fine now. Many thanks again.

EightyTwo said:

It seems to be working fine now. Many thanks again.

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Was it the filters?

Difficult to say - the hot one had some crud in it and the cold one looked okay. Obviously, both gate valves got a good work out. I’m not entirely sure that the mixer valve on the shower panel is sound an we’ll be looking for a new one soon (it was cheap and it’s 20 years old).

Anyhow, you made me bite the bullet and dive into the bottom of the airing cupboard and I haven’t bought a new pump. So that’ll do for the time being.