HSS hire them out with full instructions for under £100 for a weekend, plus you need to buy some additives.
www.hss.com/hire/p/central-heating-flusher
and the instructions are here www.hss.com/medias/sys_master/docs/docs/8961586495518.pdf
I'm doing it early in Dec.
Luckily I have a plumber next door who will help me with setup and breakdown if need be - I think I'll be OK with that really as it can go in where the (newish) pump is, which has isolators each side, so the only other messy bit could be draining the system. Undoubtedly the system will need bleeding etc after the event.
I watched it being done years ago and it really is a simple job which just takes time. Essentially you turn off all the rads and flush is one way then the other till it runs clean, then turn on rads one at a time and do the same.
EDIT: If you are thinking of doing it I'm advised that it's worth putting the stuff in the break down the sludge a good 3 - 4 weeks before. That's easy, I just held the float down in the expansion tank, drained a bit off the system and added the pot of stuff to the tank. I drained some just cost I thought that would more likely send it into the system than if I just poured it into the tank, when it might never go far.
Last edited by: smokie on Sat 19 Nov 22 at 10:12
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