Leak from kitchen waste pipe

[Joolsm]

Lasts night we noticed a leak coming from under the seat where the water tank is situated. After a bit of detective work I found out the water only came when the sun k was draining. We’re on a slight slope toward the front of the van. I’ve checked the waste pipes after finding out where the were (the van is brand new and we’re pretty much novices). The leak seems to be coming from an L-bend in the waste pipe and I think it’s only happening because the water isn’t emptying as quickly due to the slope and the pipe isn’t sealed well. What is the best way to seal the pipe? I’ve tried duct tape but it’s very hard to get a tight seal as there is very little room to wrap the tape around the joint. Any advice much appreciated for a newbie!

 

[Lenny HB]

A photo would help.
What type of pipe is is it? Solid, convoluted, is the leak at a joint?
If its a convoluted pipe it's best to replace it.

 

[Joolsm]

Here is the problem. I’ve just identified a crack in the elbow joint.

 

[Lenny HB]

Easily sorted then with a new joint.

 

[Jev88]

New joint, looks like it is meant to be welded (glue and brush in a pot style)?
Warning - when you apply the glue and push the pipe into the joint you have very LITTLE time to adjust as it grips quite quickly.

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[donkey]

As it is a new van, I would arrange a nappy to catch any water, then contact your supplying dealer.

Geoff

 

[Joolsm]

I’m having trouble disconnecting it - is there a trick? Or just brute force?

 

[62272]

Are you sure its not sealed with pipe sealant (a permanent fixing solution), if so you’ve got no chance. If its not a pressurised pipe, could you not just wrap some decent plumbers sealing tape around it?

 

[Jev88]

The few times i have needed to attack welded plastic pipe i used a saw a cut the lot out - very difficult to separate unless there is a special fluid to dissolve the glue?

 

[pappajohn]

I’m having trouble disconnecting it - is there a trick? Or just brute force?

You will have trouble....the pipe and elbow are glued to each other.
It's actually welded as when the adhesive is applied it melts the plastic then dries bonding the parts together.

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[mitzimad]

New joint, looks like it is meant to be welded (glue and brush in a pot style)?
Warning - when you apply the glue and push the pipe into the joint you have very LITTLE time to adjust as it grips quite quickly.

that type of waste pipe is just pushfit weve got the same in our burstner

 

[Jev88]

that type of waste pipe is just pushfit weve got the same in our burstner

Maybe misled by the shiny ring I thought was glue showing that could just be water from the leak. Push fit in a bouncy motorhome sounds a bad idea?

 

[jockaneezer]

The external drain pipe on my Burstner is just push fit, the elbows have a groove with an extremely thin O ring inside them, I haven't checked the inside waste plumbing.

 

[The Wino]

If it's a new van I still can't understand not taking it back to the dealer just wrap some duct tape around it as a. temp solution

 

[Joolsm]

If it's a new van I still can't understand not taking it back to the dealer just wrap some duct tape around it as a. temp solution

We’re on holiday about 1000km away from the dealer!

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[Joolsm]

Thanks for all the replies. I’m pretty sure it’s a welded fit. I’ve used silicone tape and that seems to be holding for now.

 

[pwilmo]

Hi there you probably won't have a soldering iron with you, however use the high temperature to melt along the fracture line ... not so much that you melt a hole but enough to form an indent, then fold the edges in and flatten the weld.
There are many youtube videos videos" plastic weld/ plastic bumber repair"
Absolutely wonderful for repairing old plastic trims and broken bits on the old Bessacar.
I have now bought an Amazon plastic weld kit with plastic welding rods and metal gauze reinforcement, grandchildrens' toys, broken electric fly bat.
Far superior than supergue and baking powder.