Hot water pressure vented gravity fed system

28 Apr 2014
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United Kingdom
Hello all,

I have a vented system with cold water tank in loft and hot water cylinder in airing cupboard upstairs. There is a surrey flange fitted on top of the cylinder. The side feeds a Bristan 1000 Thermostatic power shower. The top feeds all the hot water taps in the house (two in the bathroom upstairs and two downstairs in the kitchen and utility toom).


Can a pump be installed to increase the pressure at the taps?

If so where would you install it?

Bare in mind that for the Power shower to work properly "both hot and cold supplies to the unit must be gravity fed, at equal pressures, from a cold water storage tank and hot water storage cylinder."

Would a pump disturb the correct operation of the power shower?

Many thanks,

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The flexi hose is laughable.

As for your main query, would need a wide angle shot of the cupboard.

Well, flex goes around cylinder and is only about 1 metre long before joining a 15mm copper tube that goes to the power shower.

Wide angle shot? What does that exactly mean?

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