I installed some cleanser into my part old/part new (including new combi)
central heating system just before Christmas. Instructions say to leave for
upto four weeks, running hot.
I am going to be unable to drain it off and replace with inhibitor for
another few weeks and wondered if anyone knew if this would damage the
It might make a difference that the system has only been run hot for a
couple of hours a day, since the property is empty.
Tel. 07010 703 702
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