Unvented system tap pressure

Discussion in 'Plumbing and Central Heating' started by RK_London, 22 Jan 2021.

  1. RK_London


    22 Dec 2020
    Thanks Received:
    United Kingdom
    Hi - I have an unvented system . the hot water is directly connected to the pressurised system and the cold water is connected to the mains. I have two problems

    1) The hot water from the upstairs bath tap is very high pressure but downstairs shower low pressure.

    2) For the mixer taps, hot water seems to have higher pressure than cold and I get a water hammer sound when cold taps are closed and toilets flushed.

    Can anyone help me understand what's going on?
    Last edited: 23 Jan 2021
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    3 Sep 2019
    United Kingdom

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