Leaky PVC coupling
#1
05-31-19, 09:25 AM
Leaky PVC coupling
Hey all, will someone please advise on an easy (if it's possible) fix for a very, very slow leak coming from a PVC sleeve coupling in the main drain line under my house? One side of the sleeve is dripping. I'm pretty good with repairs but I don't have PVC experience and I would prefer not to cut out the sleeve for such a slow leak unless it's absolutely necessary.
Is there some kind of PVC glue for this?
Thanks for advice.
Is there some kind of PVC glue for this?
Thanks for advice.
#4
05-31-19, 09:45 AM
I can cut it out with a saws-all, but the line is being supported along it's length too. Do you have to be super careful about vibrating and flexing the line any, or is it pretty low risk that you'll pop another joint somewhere?
#5
05-31-19, 10:06 AM
Member
Daubing the joint with PVC cement might seal it up if the leak is very small and it is not under pressure. Dry it as much as possible (with a hair dryer) before applying cement. Use a stiff bristle brush to jam the cement (and melting PVC) into the joint. The more of the PVC surface you "melt" with the cement the better the fix will be.
An inspector let me do this once to seal up a joint in a vent line that weeped slightly under pressure while being tested (after the test pressure was eliminated).
An inspector let me do this once to seal up a joint in a vent line that weeped slightly under pressure while being tested (after the test pressure was eliminated).
JFS321
voted this post useful.
#7
05-31-19, 11:15 AM
Group Moderator
When you say a "sleeve coupling" do you mean a PVC coupling which is a white hard plastic glued fitting or do you mean a rubber Fernco sleeve which is black flexible rubber and held in place with hose clamps?
#8
05-31-19, 12:23 PM
It's a waste line only and the coupling is a PVC sleeve. Somebody in the past repaired another part of the line with one of those rubber sleeves, so I'm tempted to go that route now. I think I'll try the cement first.
