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Water to Shower Supplied by Pump Starts Hot then Quickly Cools
Posted: Mon Nov 30, 2015 3:42 pm
by DIYHelp
Hi, The water in my shower has just started to not be hot. When turning the shower on, the hot water comes through but then quickly changes to be just warm. The shower does have a pump attached as we have very low pressure. All other taps work fine.
Is there anyone who can help me with this please regarding the reason for it happening, and is it easily rectified?
Thank you
Re: Water to Shower Supplied by Pump Starts Hot then Quickly Cools
Posted: Fri Dec 04, 2015 10:58 am
by katoosh525
Have you changed anything recently? Put a thermostatic mixer in (backwards perhaps) or any other change to your plumbing?
Do you have a thermostatic mixer if no other changes?
Re: Water to Shower Supplied by Pump Starts Hot then Quickly Cools
Posted: Fri Dec 04, 2015 12:51 pm
by DIYHelp
Hi Katoosh525.
Thank you for replying.
No, nothing has changed at all. I do have a thermostat on the shower wall where I can change the water to different degrees. It has always been static on 35. I have tried moving this and it makes no difference?
Re: Water to Shower Supplied by Pump Starts Hot then Quickly Cools
Posted: Mon Dec 14, 2015 10:40 pm
by thedoctor
Normally means the cold pressure is overtaking the hot. Take a look at our video on pressure reducing valves
https://www.youtube.com/watch?v=ie_j3TFHpwg
Re: Water to Shower Supplied by Pump Starts Hot then Quickly Cools
Posted: Wed Dec 16, 2015 3:33 pm
by DIYHelp
Thank you, yes this sounds like a possibility. I will take a look at the video. Thank you for your help.