monsoon pump

[jonplum]

Fitted a monsoon pump to a bath & shower,teed off before the pump because the customer did not want pumped supply to his wc and basin.Trouble is,whenever the basin taps or wc is used,the pump comes on for a second ,then goes off again.I guess the slight movement of water causes the flowswitch to trip.
I am thinking about fitting non return valves just before the pump,I just wonder if anyone has any ideas? I can't change any pipework because the floor has all been tiled over.

 

[seco services]

you can fit nrv after the pump not before, the pump needs to vent back to cylinder etc.

 

[jonplum]

Thanks,I will try this.