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Is changing the diaphragm a big job?

Is changing the diaphragm on my Saunier Duval 30 E combi boiler a big job ? Could i do it myself or should i get a plumber in?

Thanks

Tom
Tom Mar 2007, March 2007
if its the ch diaphragm ,ch water pressure needs released,there should be a drain off on the boiler ,if hw turn off stop cock and drain cw taps.be careful,ive been to a few floods due to customers fixing own boilers

paul allen, March 2008
link Click here to see other fixes for Saunier Duval.