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Just a quick query. Building regs H1 state that branch discharge pipes should be kept within certain lenghts & gradients. These change according to whether they are 50% , 70%, full bore fill or separate systems. My query is how can you tell whether a discharge pipe is 50%, 70% or full bore...

I have just got back from drainining my Dad's open vent system down. There seemded to be not too much sludge in the system even though we used Fernox restorer to clear the system down (thought there might be a blockage in the pipes). We then vented the rads & turned the system on only to find...

I have just read how to Manually flush a heating system with mains water in the ref section, & this seems fine for combi boilers but is it possible to flush a system with mains water if it is gravity fed & has f&E setup. I'm getting confused. :? :?

My Dad had a problem with two rads downstairs not heating up, so as suggested by this forum I told him to close all the lockshields on the rads working upstairs to try to get them working. This worked a treat & they started to heat up, so he then opened all the lockshields. However the next...

Hi Ya New to the site, but must say very impressed :) My question is my Dad has a couple of rads not heating up in the house so I suggested using a restorer (Fernox) to remove any sludge that might be blocking these particular rads as all others in the house work. The problem is the...