Replace waterheater drain plug ?
This one looks kinda chewed up,, I checked the hardware and they don’t have a plastic one Ebay ?? Are they all the same thread ?? Would you put a little silicone grease or plumbers grease on it when...
Forum Discussion
Atwood uses a NYLON plug for couple reasons
1) Tank is aluminum so the nylon will NOT damage the aluminum threads
The nylon will strip first
2) Temp/Pressure rating of that NYLON plug
PVC/CPVC are NOT high enough temp/press rated to be safely used as a Atwood WH Tank drain plug
T&P Relief Valve Opens at 210*F/150 psi
PVC/CPVC 1/2" plug can fail at those temp/press
Atwood NYLON uses a 7/8" or 15/16" six point socket (depending on vendor)
Suburban uses a 1 1/16" six point socket for the steel anode rod
Both are 'NPT' threads (tapered) so self sealing but using a sealant is OK especially on older threads
Finger tight then SNUG up with socket/wrench
1) Tank is aluminum so the nylon will NOT damage the aluminum threads
The nylon will strip first
2) Temp/Pressure rating of that NYLON plug
PVC/CPVC are NOT high enough temp/press rated to be safely used as a Atwood WH Tank drain plug
T&P Relief Valve Opens at 210*F/150 psi
PVC/CPVC 1/2" plug can fail at those temp/press
Atwood NYLON uses a 7/8" or 15/16" six point socket (depending on vendor)
Suburban uses a 1 1/16" six point socket for the steel anode rod
Both are 'NPT' threads (tapered) so self sealing but using a sealant is OK especially on older threads
Finger tight then SNUG up with socket/wrench
