Hi...we had complete CH an Baxi boiler installed 18 months ago. The small glass ? flow meters ( on boiler manifold ) blackened almost straight away. I mentioned this to the architect and builder in charge. They didn't seem interested.....we are now "Snagging" ...a small leak from one rad.. ( valve leak ). was brown / black. This has been sorted....should the system be flushed / cleaned at their expense ? What would this normally cost if I got someone else in?.....is it a DIY job? thanks
P.S. they did use "Sentinel" X100 inhibitor ...we have he empty canister...not sure if anything else as used...thanks
P.S. they did use "Sentinel" X100 inhibitor ...we have he empty canister...not sure if anything else as used...thanks