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  • On the topic of weak mains pressure, we are one of 63 flats, modern regulations would see a large pump providing pressure but the block went up in the 1930s and all we have is mains pressure - which is not great by the time it gets to us. Would a pump resolve this, or would it simply overwhelm the supply?

  • your best bet is to get an internal pump fitted

  • You would potentially be starving other flats by sucking the supply in. The best way to achieve decent internal pressure is to use a cold water tank that feeds a pump which pressurises a smaller tank at 6bar which then provides 1.8 or something to the property. Problem is you need to check every pipe in the property can take the pressure and you need space for the tanks and pumps.

    In theory small domestic property with low demand, i.e. only one bathroom, would not need the huge tank a 4 bed three bathroom place needs. You could probably calculate the requirement and have tanks very close to the optimum size.

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