... the same, heat and cold, mark, main is to distinguish which is hot water, which is cold water. ... down a bit, (3) is the role of the switch, if bibcock is leaking, like what happened now, it ... the triangle valve shut it off, don't have to shut the home always valve. (4) is beautiful ... pipeline and can't be replaced, copper is easier to change.How to calculate the triangle valve usageThe toilet one, the ...