R
rabu
Hi, Im about to fit a monoblock kitchen mixer, after looking at the 2 washers supplied, there is one narrower and smaller diamiter washer and one larger one looked at tap and saw a recess on base, the small washer fits in this perfect, so is that the way they go, small one under tap and larger one between horseshoe and under sink? also looking at the isolation valves under sink, the cold one looks ok, but hot one starting to look manky and worn so was going to replace this with a full bore valve dont really want to drain system to swap this over, (have to turn of outside on mains, drain down..refill primatic cylinder...) since the hot pressure isnt that high would this be "ok" to get the old valve off and new one on, (seen some plumbers do it with not that much water all over the place) with the pipe still live? any help or advise is welcome, thanks.