Hi, I just replaced my two single tap with a mixer (hansgrohe axor basin mixer) but for some reason the hot water is so weak/poor while the cold is very strong. Does any know how this can be corrected? I have done some research and have came across suggestion of using bigger 22m pipe for the hot and also a GRUNDFOS pump,...however being new to this what is the correct solution? Right now the hot water is far too weak and doesn't seem to be mixed. Many thanks!