Water Heater Drain Valves..are they worth it?
So I was thinkng of replacing the plastic nut that you remove to drain your hot water heater with one of the brass drain valves by Camco. After reading reviews on Amazon I now am wondering if it is ac...
Forum Discussion
Dutch_12078 wrote:katysdad wrote:
Don't put anything but a nylon plug in a Atwood water heater. Dissimilar metals will freeze in the aluminum tank fitting.
CPVC plugs from the hardware store work well too. About 50 cents each...
YES they (CPVC) plugs will fit..same 1/2" NPT size except for one real important item.........HEAT
CPVC is NOT rated for the temperatures that can be reached in an RV water heater.
CPVC temp rated only up to 200*F MAX------
Nylon temp rated up over 400*F safely
Water heater T&P Relief Valves OPEN at 210*F
That is one reason Atwood uses the NYLON plug......temp rating
Atwood drain plug is ONLY 1/2"-----drain valve opening is only 1/4"
More stuff can be flushed thru 1/2" hole vs 1/4" restricted hole.
As is 1/2" is NOT big enough especially if you stick a wand in thru drain hole
BUY the NYLON 2 pack and change them out. :S
