Hi all,
I plumbed in a ReadyTemp hot water recirc pump to the drain of my water heater. Actually, I did this on 3 water heaters as I am doing a rehab on a tri-plex. The stock drain line stubbing out of the tank has MHT, so I used a FHT to MNPT adapter and attached the various fittings as shown in the photo to get everything connected. After filling the system, I noticed there was a slow leak at all 3 of the FHT to MNPT adapters. I did not use any dope or Teflon tape on the garden hose connection as my understanding is that these should be clean and that the gasket will provide the seal. After taking everything apart, it looks like the gasket was deformed on 1 or 2 or them, so I was thinking that maybe it was overtightened? Or was it undertightened. Hard to say. Then I got to thinking that maybe it's a bad idea to have a garden hose connection in the chain at all.
So here are my questions:
1. Which method is better (a) my original method with a correctly tightened adapter or (b) remove the stock drain stub out and keep all connections NPT.
2. If I remove the stock drain, would that void the warranty? The water heaters are Rheem Hybrids that come with a 10-year warranty, which is a part of the reason I decided on those, so I don't want to do anything that would void that.
Thanks!
Michael
I plumbed in a ReadyTemp hot water recirc pump to the drain of my water heater. Actually, I did this on 3 water heaters as I am doing a rehab on a tri-plex. The stock drain line stubbing out of the tank has MHT, so I used a FHT to MNPT adapter and attached the various fittings as shown in the photo to get everything connected. After filling the system, I noticed there was a slow leak at all 3 of the FHT to MNPT adapters. I did not use any dope or Teflon tape on the garden hose connection as my understanding is that these should be clean and that the gasket will provide the seal. After taking everything apart, it looks like the gasket was deformed on 1 or 2 or them, so I was thinking that maybe it was overtightened? Or was it undertightened. Hard to say. Then I got to thinking that maybe it's a bad idea to have a garden hose connection in the chain at all.
So here are my questions:
1. Which method is better (a) my original method with a correctly tightened adapter or (b) remove the stock drain stub out and keep all connections NPT.
2. If I remove the stock drain, would that void the warranty? The water heaters are Rheem Hybrids that come with a 10-year warranty, which is a part of the reason I decided on those, so I don't want to do anything that would void that.
Thanks!
Michael
