Power flushes / rads not heating up - HELP PLEASE!

[ballvalve]

Small bore pipework will block very much easier than 15mm pipe. Clearing it is so difficult. A heavy dose of cleanser is required and also a Magenetic Filter to collect the deposits as they are loosened. Clearly a flush is needed. That damned microbore again!!

Small bore is 15 mm pipework.

 

[Riley]

Was always of the impression that small bore was up to 12mm

 

[Mandy Cowlishaw]

Was always of the impression that small bore was up to 12mm

Yep, it looks like we have microbore upstairs and 15mm copper pipe downstairs.....sounds a bit weird for a 25 year old house. I guess we’ll never find out the reason why!

 

[Frog67]

Can you get to the small tank in the loft and photo the water that's inside it? Dirty water inside the tank can help diagnose problems.
Also with the heating on, run your hand over the radiators, They should be warm / hot all over. Any cold spots will indicate a build up of sludge within the system.

 

[Mandy Cowlishaw]

Can you get to the small tank in the loft and photo the water that's inside it? Dirty water inside the tank can help diagnose problems.
Also with the heating on, run your hand over the radiators, They should be warm / hot all over. Any cold spots will indicate a build up of sludge within the system.

That’s a good idea, I’ll go up and take a look when I have some good light...thanks for the idea

 

[shocking mod]

The drain cocks seem in good condition should be quite easy to drain the system after you have cleaned it, but a magnetic filter would be a good idea, than add inhibitor. It would make the water hotter I mean more efficient if that is the problem.