No flow through shower head.

[wfleming3]

Electric pump supplied by hold and cold low pressure 15mm pipes.

Somewhat stuck with this as previous owner had a bathroom conversion with this set up.

New shower head probably designed for high pressure both sides. Just a feeble dribble through shower head, not enough to signal pump "on".

A quick flick of the sink hot water tap will signal the pump on, but quite a pain.

Have I fitted the wrong kind (1.5 bar) shower head ??

 

[letsgogreen]

Hi, Try it with the shower head removed. This will tell you if the shower hose is ok. If the hose is not new it may have a collapsed liner inside.
The type of shower you are describing is, in effect, a power shower and so it should be fine with almost any shower head.

Hope this helps,

 

[wfleming3]

All pipe runs are now concealed, 15mm copper/ Hep2O fittings.

Once running, the flow is just fine!

Problem is no signalling of pump on without resorting to jiggling of temp control back and forth repeatedly.

 

[wfleming3]

Problem sorted!

Spoke to technical helpline of shower supplier (Hudson Reed).

Shower valve has two wide brass screws (normally hidden by chrome face plate). Contained within these wide screws are the wire filters AND non-return valves for hot/cold.

PROVIDED the low pressure supplies are PUMPED, then it was advised to remove the NRV. This allowed a moderate flow through the valves and shower head, and the pump was thus triggered ON.

BINGO.