Mine is all plumbed direct to the mains cold water and was fitted by a so called qualified plumber and because of the water pressure been too high, its resulted in cracking the inner plate on the pump. I wondered if i put a pressure reduction valve in, would it do the job?
It was connected to the mains and it shouldnt be as stated in the manual, but as i said a so called 'plumber' fitted it this way. I was just wanting to know if i fit a pressure reduction valve would that do the job? I phoned bristan and asked what the maximum pressure what should go to the pump, they said 0.5bar. So once a reduction valve is fitted it will immitate the pressure from the cold water tank. Does this make sense? as you can tell iam no plumber
:cry: A so called professional plumber (for the previous owner) fitted a pump to our mains (cold) and tank fed hot. The pump has failed (cracked). The manual confirms that both feeds should be tank fed.
Is there a solution without re doing the pipework?
My pump also cracked. I have a Bristan Varispeed and after taking the side of the pump off i saw a the crack was on what i now know as the Inner Plate (i think). If yours is by some strange coinsidence the same make of pump and the same cracked area, you can get a new part as i have. Once i replaced the part i then fitted a pressure reduction valve to the cold water suply which now is set to the maximum pressure my pump can withstand. Touch wood..........its ok now!!!!!!!!
ps.. iam no plumber but if you need any more help on what i have said just shout :lol:
As far as I am aware (and I have installed many showers and pumps), you should not have a pump fitted in a high pressure system. What could it possibly improve anyway? What sort of heating do you have? Pumps are designed to increase the shower pressure in gravity fed situations only. If a combi is then installed, the pump must be removed. As you rightly say, they have a max pressure of about .5 bar. Fitting a pressure reducer will just cause more problems and possibly be potentially dangerous.
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