Hello All
Just learned the connector sizes for shower pumps are 15mm (screwfix don't print 'em, only by searching for spec sheets I found out BEFORE I ordered the pipe).
I was going to do the run from the HW and CW tanks in 22mm before and after the pump to the shower - but if the pump is only 15mm, is it worth it? Am I better advised to run the whole run (some 10M) in the smaller size?