Shower water pressure problems

[Jools55]

We've recently had a loft conversion and installed a shower room up there. However, we're having a problem with the cold water supply to the aqualisa electric shower. The water becomes scalding hot in no time at all, therefore is unusable.

The aqualisa engineer said the water pressure wasn't sufficient. How do we increase the water pressure? How do you measure water pressure?

We have a combi boiler in the kitchen and a thermostatic shower in the first floor bathroom that is working well.

We thought that by having an electric rather than thermostatic shower in the loft we would avoid water flow problems when both showers were used at the same time. Obviously we were wrong..!

How do we resolve this problem...different type of shower, scrap the boiler.....?

I would be grateful for any suggestions.

Thanks, Jools

 

[kevplumb]

no real practical way to increase mains pressure/flowrate
could try local water co

 

[brumylad]

is the cold water supply from the mains or from a tank still somewhere in the loft.

 

[kevplumb]

Posted: Tue Nov 09, 2004 12:12 pm Post Subject: Shower water pressure problems

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We've recently had a loft conversion

what loft ??

 

[Jools55]

The water comes off the mains. We've always had a combi boiler so no tank anywhere.

I'm wondering if a thermostatic shower like the one on the floor below might not be a better option, at least it would stop the danger of being scalded, wouldn't it...?

Thanks, Jools

 

[kevplumb]

yup

 

[brumylad]

check the simple things first eg.
service valve not open fully,
gauze filter in electric shower clogged,

Also could try running the cold water supply in 22mm to get better flow.