I've read all the FAQ's and im still struggling with two cold rads that are driving me bonkers. I
I've put some Sentinel 800 in my system today to try and see if it gets two downstairs rads working. They stopped working in Spring and i've tried everything that I can think of to try and get them hot (balancing/turning off all rads bar one of the problem ones/new trv/new valves/cleaned gauze in boiler return pipe). I thought a blockage might be the problem
One is currently tepid as I write this which is progress.....
How long should I leave the Sentinel in? Until I can get both working or should I drain and flush after the 20hrs?
Should I wash and clean out the Magna clean during this time or wait until after I flush through the system.
I drained the system today and the water was clear. Tonight I bled one of the problem rads and it was much dirtier.
I've put some Sentinel 800 in my system today to try and see if it gets two downstairs rads working. They stopped working in Spring and i've tried everything that I can think of to try and get them hot (balancing/turning off all rads bar one of the problem ones/new trv/new valves/cleaned gauze in boiler return pipe). I thought a blockage might be the problem
One is currently tepid as I write this which is progress.....
How long should I leave the Sentinel in? Until I can get both working or should I drain and flush after the 20hrs?
Should I wash and clean out the Magna clean during this time or wait until after I flush through the system.
I drained the system today and the water was clear. Tonight I bled one of the problem rads and it was much dirtier.