Jamie
Thanks for your advice and clarity - all done sealed and sorted!!!
What a pesky little thing - the guy who installed it cam back and couldn't figure out what was wrong - good job he didn't charge me more than a cuppa!!
Thanks again
Matt
can someone explain exactly where the flow restrictor is? in the joint of the rear right hand side pipe (cold flow into heat ex box)? i'm not too sure from the previous replies.
Also i've got high cold water pressure if the restrictor is taken off do i then control the inbound cold pressure...
