twin impeller pump All aspects of plumbing questions and answers, help, tips and information

[alan p]

hi
Ive just moved my shower unit and ran the hot pipe from the twin impeller pump under the shower base and up the wall in studding. It is all independant and has worked successfully for the past few years. Now when i turn on the downstairs hot tap the pump turns on for a few seconds when thre hot tap is turned off again. Any thoughts anybody.

[bobplum]

is the hot water connection to the pump the first draw off if not then when the hot water is drawn from the tap it will draw water from the connection to the pump

[alan p]

hi
It has an independant feed to the pump in the top of the cylinder