Upgrade Gravity Fed Thermostatic Bar Shower Valve

Postby trevbul1 » Sun Aug 12, 2018 10:18 am

HI all,

I have moved into a house with a gravity-fed thermostatic bar shower valve which is barely a trickle and desperate for a pump. There is a dedicated 22mm feed from the cold water tank and a shared 22mm feed from the hot water cylinder in the roof, so I will fit an Deleted flange to feed the pump.

However, the last 1.5 metres of pipe, hot and cold, have been reduced to 15mm.

I am concerned that this will reduce the benefit of the pump - can I replace the connections in the back of the shower valve with 22mm or will I need a new shower valve?

Thanks in advance for any advice!

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