had plumber come in to put in a new cartridge last year and now I find pump struggles when regulator is turned to hot. Works fine with cold. I suspect some level of calcification restricting flow . Do I need to replace it so soon or is there any way of cleaning it
had plumber come in to put in a new cartridge last year and now I find pump struggles when regulator is turned to hot. Works fine with cold. I suspect some level of calcification restricting flow . Do I need to replace it so soon or is there any way of cleaning it