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Leaking water heater inlet

RECVEH2005
Explorer
Explorer
I have just discovered that my water heater COLD water inlet is leaking. I've tried to tighten the plastic "nut" which has 3 prongs for grip, but cannot get it tight enough to stop the drip (I hope it isn't cracked.) Like most things underneath an RV, it is difficult to get at. And, yes, I do always use a pressure regulator at the faucet.

My question is: Do you folks think that plumbers tape (which I have in my toolbox) would work for this problem? Any advice will be appreciated.

We're staying just outside of Glacier National Park, so are not near an RV repair facility.

Thanks.

Mike
Mike & Donna Scheer
Green Valley, AZ, USA

2013 GMC SRW Crew Cab 3500 short-bed D/A
2013 HitchHiker Discover America 300 FK
9 REPLIES 9

sk734
Explorer
Explorer
I can surely understand that!! Mine was not too difficult to get to when I did it. I am glad to hear your fix is working.BTW I used a heat gun to warm it up and it came out easily if you ever need to replace it.
RECVEH2005 wrote:
mobilecastile:

It would be a MAJOR job for a repair person to change this connection to a metal one; it is a difficult place to reach. The water heater would probably have to be removed. That isn't going to be done out here in West Glacier, Montana.

I was able to do the plumbers tape repair and as of last evening the connection was not leaking. I will continue to check it.

Thanks.

Mike

davent1946
Explorer
Explorer
Best of luck with the teflon tape. On my Big Horn they used PLASTIC short nipples on both the cold in and hot out. Plastic became brittle, cracked and when I tried to remove of course they both broke off. I didn't have to remove the heater to replace both and replace with brass but it was a pane in the arss/back to complete. Another one of the manufacturers nickle & dime efforts to save a buck along with the PLASTIC bushings in the shackle bolts.

RECVEH2005
Explorer
Explorer
mobilecastile:

It would be a MAJOR job for a repair person to change this connection to a metal one; it is a difficult place to reach. The water heater would probably have to be removed. That isn't going to be done out here in West Glacier, Montana.

I was able to do the plumbers tape repair and as of last evening the connection was not leaking. I will continue to check it.

Thanks.

Mike
Mike & Donna Scheer
Green Valley, AZ, USA

2013 GMC SRW Crew Cab 3500 short-bed D/A
2013 HitchHiker Discover America 300 FK

sk734
Explorer
Explorer
I would put in a metal one.

joeprinter
Explorer
Explorer
Teflon tape is your answer.. 5-7 loops you will be good
"2012 Forest River 360 DS"
"Ford V-10"
"2013 Toyota Corolla on Tow Dolly"

RECVEH2005
Explorer
Explorer
Thanks, all. I'll try to reach in there; it's a tough place to get at.

Mike
Mike & Donna Scheer
Green Valley, AZ, USA

2013 GMC SRW Crew Cab 3500 short-bed D/A
2013 HitchHiker Discover America 300 FK

enblethen
Nomad
Nomad
I would take the part out of the water heater. It could be a check valve. It could be cracked. I would also check the "nut closely for a crack.
Look at the nut and the fitting in the tank. If it is a flare type nut, do not use any sealant, tape or otherwise.
Look in the nut for a washer.

Bud
USAF Retired
Pace Arrow


2003 Chev Ice Road Tracker

Bull_Rider
Explorer
Explorer
I would give the teflon tape a go, wrap the fitting so that the tape lays down in the proper direction. I carry the yellow "gas" teflon tape too, it's thicker than the white tape, and I think it seals better.

Good Luck.
If you receive help from other members, don't forget to update your topic with the results.

2oldman
Explorer II
Explorer II
yes
"If I'm wearing long pants, I'm too far north" - 2oldman