Recent content by Steven935

Bought FERNOX system flush(Crystals) and added to system.followed instructions carefully and circulated for around 5 days,with the system bubbling away,and venting every day. Then flushed out with clean water and added FERNOX inhibitor MB-1(funny colour,looks like a urine sample) as per...

PPS -can I buy an appropriate flush substance from B & Q -I've noticed they sell quite a few different heating chemicals and could you recommend a brand.? Sorry about all the questions, once I get started, I can't stop ! Thanks

Many thanks for your swift reply. I have a container of FERNOX-MB1 that's been in the garage for 12 months that I have not yet used.Is this suitable? I think the boiler is cast iron. I've read that 'potable' chemicals only should be used .Does this mean non-toxic,in case it leaks into the...

I appear to have a noise coming from the pump area in the airing cupboard.It sounds like tiny air bubbles, a sort of 'rushing' noise, similar to rising main pressure noise. It only happens when the system is hot, and the mid position valve has moved to CH only, from CH and HW. I can't...