- Joined
- 11 May 2021
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Hi as you can see many of my local plumbers have tried and failed and my missus is getting fed up
I know this is a slight on the profession but i also know there are some really good plumbers out there i just dont know any local to me (yet)
We have a shower fed from a thermostatic tap and is in turn fitted with a salamander pump on the hot water side.
Its a positive pump and will readily trigger itself once shower tap opened so i dont believe its a negative head issue.
problem-
It runs for about 30 seconds and then starts to cough and splutter and eventually turns itself off.
Turning the tap on and offer fixes it and the above repeats, runs for 30 secs or so and then splutters and stops.
I have bled the pump and as it runs perfect for 20 to 30 secs i think this proves it doesnt have any air locks in the pump itself?
Sometimes it runs perfectly & can be used as you would expect but more often than not the 30 sec spluttering above happens.
Its almost like its running out of water or sucking in air.
I have just discovered that when its running there is almost no HW coming out of the bathroom taps, like they are being starved or something. When it cuts out flow returns to the taps.
Everything is dry (no leaks) and it appears to have been fitted correctly.
Its placed at base of HW cylinder with the HW inlet coming from the top of the cylinder where a flange has been fitted.
The pump is brand new as i swapped it out myself just in case it was that but same thing.
What can i look at next?
This has been going on for about 9 months now and like i said a we have had people out who just tend to shrug there shoulders promise to check it out an come back to us but we never hear from them again.
HELP PLEASE
I know this is a slight on the profession but i also know there are some really good plumbers out there i just dont know any local to me (yet)
We have a shower fed from a thermostatic tap and is in turn fitted with a salamander pump on the hot water side.
Its a positive pump and will readily trigger itself once shower tap opened so i dont believe its a negative head issue.
problem-
It runs for about 30 seconds and then starts to cough and splutter and eventually turns itself off.
Turning the tap on and offer fixes it and the above repeats, runs for 30 secs or so and then splutters and stops.
I have bled the pump and as it runs perfect for 20 to 30 secs i think this proves it doesnt have any air locks in the pump itself?
Sometimes it runs perfectly & can be used as you would expect but more often than not the 30 sec spluttering above happens.
Its almost like its running out of water or sucking in air.
I have just discovered that when its running there is almost no HW coming out of the bathroom taps, like they are being starved or something. When it cuts out flow returns to the taps.
Everything is dry (no leaks) and it appears to have been fitted correctly.
Its placed at base of HW cylinder with the HW inlet coming from the top of the cylinder where a flange has been fitted.
The pump is brand new as i swapped it out myself just in case it was that but same thing.
What can i look at next?
This has been going on for about 9 months now and like i said a we have had people out who just tend to shrug there shoulders promise to check it out an come back to us but we never hear from them again.
HELP PLEASE