Very poor output from taps and shower

[Nick77]

Hi,

I have an ongoing problem with the water flow from my mixer taps and shower. Only the flow rate from the mains-supplied kitchen cold tap is acceptable. Over the last 2 - 3 months the output from the other mixer taps has gradually decreased and it seemed likely that my booster pump had developed a fault. When the taps are turned on there is a reasonable - not great - output fro about a minute and then it reduces rapidly. Turning on 2 taps leaves barely an output from either. Flushing the loo also cuts out the flow from a running tap.

A new variable speed pump was installed last week but there this hasn't improved things. Another plumber spent all afternoon today trying to remedy the problem without success, which was as frustrating for him as it is for me. He thinks there is a massive air-block but can't see how to resolve it. He is going to ask around to see if any of his fellow plumbers have had similar experiences.

I now think it possible that there was nothing wrong with the old pump but can't be sure.

If anyone can advise on this it would be great to hear from you.

Many thanks and regards,

Nick

 

[ShaunCorbs]

the only way i can think of is flush the outgoing pipe from the pump with mains water to prove the line has no air in it

 

[Nick77]

the only way i can think of is flush the outgoing pipe from the pump with mains water to prove the line has no air in it

Hi Shaun,

I think I'll arrange that. I'll let you know how things turn out if this thread is still active.

Have a great weekend everyone.

 

[spanner]

Or there's a check valve, or pr valve, or strainer somewhere.
If you've a pump positioned and fitted in the right place 3bar on one floor should be very powerful all round ??
Check or replace pump strainer.

 

[Nick77]

Or there's a check valve, or pr valve, or strainer somewhere.
If you've a pump positioned and fitted in the right place 3bar on one floor should be very powerful all round ??
Check or replace pump strainer.

The pump is brand new - installed a week ago. The old one was probably fine too but the manufacturer's tech team said it was v likely that it needed a new pressure switch - unfortunately, they stopped supplying parts for this model in January this year, which was a bit disappointing as I bought it 6 years ago.

I agree, a 3 Bar pump seems excessive but the old one did the job. Also, it was unusual for more than one tap to be on at the same time so the demand was low.

 

[PlumbBobBob]

Hi Shaun,

I think I'll arrange that. I'll let you know how things turn out if this thread is still active.

Have a great weekend everyone.

this thread isn't going anywhere anytime soon :santa1:

 

[ShaunCorbs]

this thread isn't going anywhere anytime soon :santa1:

unless the world blows up but then who cares 😀

 

[spanner]

Personally I would not have any kind of recommendation to ever fitting a pump that you've kept three years tbh.
And I'm in Wembley at the moment. Just finished
In H9
Is this local to you??