Note to self.
Tried the heating again last month. Rad still not working.
Took the rad off today.
Connected 2 hose pipes running outside to both pipes.
Found 1 pipe (TRV end) was blocked.
Increased pressure a little to about 1.7 and got water flowing. Lots of black debris came out.
Flushed out until debris stopped.
Both pipes running at same approx. flow rate.
Flushed out the kitchen and lounge (large) rad, but these were ok.
And downstairs toilet
Added X400 cleaner to system and ran system hot.
My drain valves drain the rad, not the system
Tried the heating again last month. Rad still not working.
Took the rad off today.
Connected 2 hose pipes running outside to both pipes.
Found 1 pipe (TRV end) was blocked.
Increased pressure a little to about 1.7 and got water flowing. Lots of black debris came out.
Flushed out until debris stopped.
Both pipes running at same approx. flow rate.
Flushed out the kitchen and lounge (large) rad, but these were ok.
And downstairs toilet
Added X400 cleaner to system and ran system hot.
My drain valves drain the rad, not the system
Last edited:
