we carried on making the “U” shaped set of pipes to take the various water pipes up to the roof to the header tank and to our future solar water collectors. A mixture of 15mm copper (4 pipes) and 22mm copper (2 pipes) plus one plastic electric conduit. They go out through 7 holes out of the back wall above the hot water tank, bend upwards to pass the Oak Facia board and bend back onto the roof.
Today we have finished soldering 4 of them and screwing together the other 2 copper pipes (the last 2 pipes has to withstand high pressure and temperatures so soldered joints of the standard lead/tin kind isn’t strong enough). We bent the plastic conduit (25mm) by heating it up using a hot air gun and pushing inside one of those 22mm diameter coiled springs to help keep the walls from crumpling up and bending it on a jig!
Roof bypass pipes
Roof bypass pipes
Tomorrow we can put it up and start connecting the mains water to the header tank and the see if it works!!