Low hot water pressure from shower and taps

28 Jun 2013
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United Kingdom
Hi, can I install a single impeller negative pump to increase the hot water pressure to my shower and taps? The hot water is gravity fed from the cylinder on the same level. There is no cold water tank so the cold supplies are all mains fed.
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What supplies your cylinder, as you say it's gravity but no cold tank!
Cold mains and gravity or pumped hot to a shower is not often successful.
It's a combination cylinder with 2 small tanks part of it. One which supplies the cylinder and one to supply the central heating.
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negative head impellers are for a pump above the cylinder- just put a standard pump at the foot of the cylinder. as your bathroom cold should be mains, just pump the hot.
fortic cylinder, need to check the loft for a holding tank. chances are there isn't one- or why the expense of a fortic?
No there's no tank in the loft. It's an ex council house with the original central heating system.

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