2021 Thor Four Winds Leaking black tank pipe

[aloks]

My RV recently started leaking from the black tank pipe at the coupler. I put on some rubber flex seal let it cure but the leak hasn't stopped. A drop leaks every 30 secs or so. Short of replacing the pipes till the valve what options do I have?

In the attached diagram it is leaking from the #8 and #17 join. I see it was likely leaking from start as Camping World seems to have applied gobs of silicone caulk around it.

 

[Lt Keefer]

This tape has worked for me on low pressure pipe repairs.

https://www.amazon.com/Rescue-Self-...XJR&gPromoCode=sns_us_en_10_2025Q1&gQT=1&th=1

Make sure you stretch it as you apply it.

 

[aloks]

This tape has worked for me on low pressure pipe repairs.

Amazon.com

Make sure you stretch it as you apply it.

Thanks! I do have some Eternabond tape: https://a.co/d/abcQ13z Could I use that instead?

 

[Lt Keefer]

Never heard of using etrnabond to keep liquid in, only to keep liquid out.

 

[aloks]

Never heard of using etrnabond to keep liquid in, only to keep liquid out.

It's a perspective.. the liquid is still being kept out (from reaching the ground)...

I ordered the tape you mentioned. Will update in a week once back home. Thanks @Lt Keefer !

 

[Ret.Crpntr]

Make sure you throughly clean the silicone from the pipe. Use Oatey plumbers sand cloth to make it easy. Cut a strip about 1 foot + wrap around pipe in a u shape and use it like an old time shoe shine.

 

[jawzilla]

I used a rubber hose and 2 hose clamps on a similar leak. Worked good for me.

 

[ducksface]

Use the Keefer tape.
I've been using it since 1977.
It used to be exclusively expensive and was orange with a green stripe.
I have repairs that are 30 years old and still holding.


In the mean time:
A diaper wrapped around it and duct tape to hold it on will do until Keefer tape gets to you.

 

[aloks]

haha the image of a diaper around the pipe is funny! Thanks!

 

[ducksface]

I keep diapers in all my bins in case of water intrusion.
I can certify my idea for the temporary repair.