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- 28 Sep 2015
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Hi,I have a Vallaint combia turbomax plus 824e boiler. The water pressure keeps drooping to 0.2. I have had a plumber in before to look at it and he increased the pressure of the loop valve with a key because the screwdriver head directly on the valve is very worn out making it impossible to adjust with a screwdriver. I am trying to find this key with recesses into the valve and allows me to adjust the pressure but I can't find one online anywhere. Would you be able to help me with this in any way ? Many thanks