Please can somebody help me?! We've recently fitted a new bathroom and have installed a Salamander RSP50 pump (in the airing cupboard) connected to a Grohe Grohtherm 3000 Bar mixer shower with a Grohe Movario 5 shower head onto our gravity fed water system.
When we turn on the mixer the water trickles out and on many occasions the pump will not kick in (sometimes it will after a few seconds) However, if we lower the shower head - it then kicks in.
Once working and the showerhead is replaced in the holder, the shower is fine for a short while but then pressure slowly reduces and on some occasions the pump totally stops. Its really frustrating as we were all excited in finally having the bathroom finished! We'd appreciate any advice on what might be the cause and what we can do to solve it.
simple diagram of set up
When we turn on the mixer the water trickles out and on many occasions the pump will not kick in (sometimes it will after a few seconds) However, if we lower the shower head - it then kicks in.
Once working and the showerhead is replaced in the holder, the shower is fine for a short while but then pressure slowly reduces and on some occasions the pump totally stops. Its really frustrating as we were all excited in finally having the bathroom finished! We'd appreciate any advice on what might be the cause and what we can do to solve it.
simple diagram of set up