Power flushing

[belb99]

I have not used one before, anything to look out for, the system is vented but is being converted to unvented, do i need to block off the overflow to header tank before use, and what conections are used from pump unit on to pipework.
Cheers Brian

 

[ChrisR]

If you're hiring a machinr you should get the connectors - I just use 1 1/2 inch male to 3/4 f bushes, a quid or so each, then angled adaptors 22 - 3/4M. No point flushing pipes you aren't going to use so put isolators in the feed and vent. You shouldn't leave them there if you continue using the system vented.