I am looking to replace a leaking cold (fresh) water system drain valve that has through-leakage. It's a quick disconnect (WHALE??) piping system, but I cannot find a USA vendor selling parts, particularly isolation valves. Can anyone point me in a reasonable direction, please?
On our boat the tubing is the same size as PEX, so any quick connect PEX fittings/valves should work. Best value I found was with Watts fittings and stackable valves at Blue River Farm Supply. http://www.blueriverfarmsupply.com/
I have replaced the tank manifold valves and most of the fittings.