hi
im re plumbing my bath and fitting a thermostatic mixer shower the bath currently has 22mm hot and 15mm cold is this ok also what should the shower be 22mm or 15mm it will run off mains cold and combi boiler
im re plumbing my bath and fitting a thermostatic mixer shower the bath currently has 22mm hot and 15mm cold is this ok also what should the shower be 22mm or 15mm it will run off mains cold and combi boiler