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Fitting new shower valve ..........

 
DIY
Last Post by Mars 1 month ago
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 Lenny
(@lenny)
Trusted Member Member
Joined: 2 years ago
Posts: 33
Topic starter 29/07/2025 4:06 pm  

This may be too generic but

 

I need to change the Thermostatic valve on our shower. Draining our old conventional system was straightforward (maybe it still is ? )

There is an isolator tap in the "cold supply in pipe", if I close this and drain through the shower and bathroom taps will that empty the hot and cold sufficient to disconnect the shower ?

 

TIA  


Samsung 12kw ASHP, nine 415w PV panel array, upgraded radiators and DHW water tank (+ pumps etc). Two wireless zone thermostat controllers and Samsung MWR-WW10N


   
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 3420
29/07/2025 10:15 pm  

I’ve never taken a chance when fiddling and changing our shower thermostatic valves, and have always turned off the water supply to the house at the stopcock, and then drained off remaining water.


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