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should i add more inhibitor?

Had a full system flush done in Feb 09 and inhibitor added. Have a Valiant Ecomax boiler, and had a new heat exchanger fitted today (7months after flush was done). The boiler was drained to fit the new part. Do we now need to add more inhibitor to the system?
Deb, August 2009
The Engineer who fitted the HE should have tested and added inhibitor if necessary, I would speak to your Repair company about it

www.elanar.co.uk, August 2009