Hi. I want to drain the central heating system to insert sludge remover and inhibitor. Now have have gone through the system twice and cannot find a draincock. Central heating was installed in the late 80's. Now if this is the case and the drain cock does not exist, what is the quickest alternative to draining the system. I know probably a drain cock will have to be inserted at some time, so where is the best place to fit this for future reference. I do have a feed and expansion tank in the loft.
Any help and information you can give me would be apprecaited.
Charley
Any help and information you can give me would be apprecaited.
Charley