Shower pump pulse

[Old Account]

Hi guys maybe someone could help me out on a Friday evening ...
i have got a twin impeller showermate eco pump.

exposed shower bat mixer with a rigid rail ...


top shower head ( ridid ) work fine
But the one with the hose attached is pulsing but only when it's attached as soon as I take the head off it's absolutely fine ...

i have a second new head with me to test because of restriction or scale

but it does the same thing

I even lifted the head up and down to see any difference... no difference

in the attic I have got a tank which feeds the house apart from the kitchen

downstairs guest toilet doesn't work at all ( it's not pumped )

ONLY shower riser is pumped ...

what can I do ?

 

[Old Account]

Downstairs tap works now but still pulsing shower pump only when head is attached

 

[turnpin]

:smile5:Try and run it for a while with the head removed possible air getting trapped?........regards Turnpin

 

[Old Account]

Thank you turnpin,

The pump struggles to work though.
The pump is not correct installed ... 15 mm supply all the way ... :/ no flange ,

So it needs upgrading