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Sep 11, 2021
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Uk
Member Type
Heating Engineer (Has GSR)
Hi, i was called to a worcester combi with a blocked plate exchanger it had a green slime inside it was also in the rads the system is only 18 months old biocide did nothing has anyone ever used like a shock treatment like in a hot tub to kill whatever is growing. I've sent a sample away to have it analysed just wondered if it's OK and safe.
 

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