Central Heating water draining very slow
Hi,
Today I drained the central heating system and the water flow was very
weak a baby ****ing out. I did open the bleeding valves but still very
slow.
Up in the loft tank is still full and I can't understand why water did
not flow fast as it did some years ago.
Do you think the central heating is clogged with scales/sludge please?
What should I do?
Rajinder
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