Drain Hose keeps coming off

[petedoll50@gmail.com]

Does anyone have an issue with the drain hose from the kitchen sink to the grey tank coming off when the slide is moved in and out?
Our 2022 WS31 Quantum has been plaguing me since day one. Here is what happened, after finding a leak in the slide where the drain from sink to tank is, dealership puts in a new hose and things seem ok until we leave AZ for home in WI. Along the way back, hose comes off and I get it back on and keep an I on it.
I'm now in the process of getting it looked at but the closest dealership can't get to me until July, the factory isn't any time sooner either.
I think the hose is too stiff and puts to much pressure on the connection and it pulls out. Thoughts??
In the mean time I have put it back together with some Gorrilla tape to hold it it in place.
Anyone else have this happen??
Thanks

[Pete'sMH]

I had the same problem in my Winnebago. I never did come up with a permanent fix. Just checked it regularly and made the best of it. I think you’ll be able to make it workable if you do the same. But when it came time to trade I had a firm rule against plumbing in a slide. Live and learn.

[Mulerider]

On our 2019 windsport 29M I had the same problem. Take a heavy tie wrap strap around the drain hose another one around the abs pipe then slip another tie wrap through the two and tighten. This will keep the house from pulling off. I also replaced the abs piece that goes into the gray tank with a swivel abs connector. This way when the slide out retracts and extends the abs pipe moves. Mine would keep shearing the connector on the tank. Hope this helps.

[Judge]

I have. Magnitude Super C and had a similar issue from day one and the dealer was useless.

The dealer tech who tried to fix it was a moron. He secured the hose to the slide floor so when the slide moved it would pull the hose out of the connector since the grey tank and fitting was stationary.

It's just a crappy Thor design. I put a bracket on the back of the grey tank connector and a clamp on the hose and then zip tied the hose to the connector through the hose clamp and to the bracket. Mine has never come off again.

[petedoll50@gmail.com]

Thanks, for the reply. That pretty much is how it was installed from the start. Trouble is it keeps pulling out. I'm now thinking the drain is supposed to swivel as well when the slide goes in and out. I can move the drain pipe but it really takes some effort. Thoughts?

[petedoll50@gmail.com]

So here is a pic of what keeps coming off....my question now is should the elbow
going in to the tank move freely with the slide going in and out? If so it's not doing it easily...can it possibly be to tight and is it just threaded in to the tank? I'll be trying to get a hold of Thor tomorrow

[Judge]

Originally Posted by petedoll50@gmail.com

So here is a pic of what keeps coming off....my question now is should the elbow
going in to the tank move freely with the slide going in and out? If so it's not doing it easily...can it possibly be to tight and is it just threaded in to the tank? I'll be trying to get a hold of Thor tomorrow

Attachment 37237

The elbow is stationary! It is physically attached to the grey tank and does not move with the slide. That is why there is a slot cut in the slide box floor and a black material "bag" around for sealing as the slide moves in and out around the elbow.

The hose is flexible so it can move with the slide. I actually used a metal clamp and bracket that went around the hose and the elbow eventually instead of the zip tie approach. The fitting is just a hand-tightened compression fitting and it does not grab securely enough. It won't leak but enough movement of then hose can eventually pull it out.

Again.... you are better off fixing it yourself than using a dealer. I won't have access to my coach for a couple weeks but I can post a picture of what I did once I'm back north.


One immediately obvious issue is that there is an angular strain on the hose that is not helping. I would re-route and move the hose so it is going straight into the compression fitting and then try to secure hose in a way that it stays straight right where it goes into the elbow. Right now you have it bending and not all of the hose is inside the compression fitting, which is not helping the situation.

Once you get it straight, you can try to really crank down on the nut with a pipe wrench but not too much so you don't break the elbow or strip it.

[petedoll50@gmail.com]

Judge, I have straightened the elbow and the hose going into it. It seems like the elbow moves when the slide goes in and out causing it to pull the hose out. I'm thinking the bag is causing some binding as well on the elbow. Can't wait to see what you have done.
Thanks.

[wrapped]

Watching. I cut the 90' off, attached a rubber reduction connector to pipe coming out of gray tank installed new longer flexible pipe connected the 2 with piece of rigid pipe.

[Judge]

Originally Posted by petedoll50@gmail.com

Judge, I have straightened the elbow and the hose going into it. It seems like the elbow moves when the slide goes in and out causing it to pull the hose out. I'm thinking the bag is causing some binding as well on the elbow. Can't wait to see what you have done.
Thanks.

My elbow does not move. Yours may have not been glued in properly or it may have broken at the tank.

The bag just has a cut through it so plumbing and electrical can stay in place while the slide moves around it.

My fix is fairly simple as I recall (been 3 years since I did it). I just have a couple pieces of metal connected together around the elbow and hose to keep the hose from being able to be pulled out. I'll post it when I get to the coach.

[Steph0122]

Just bought a Brand New 2024 Challenger 37FH less than 24 hours flooded the inside. I thought there was some red flags at pick up and was lead to believe it was ice maker/water in the door that the tech "accidently" did it. Slides were closed at this time. We didn't open the slides again any until we got to our next stop the next morning when we got to our 1st hook up site. My husband went to wash his hand and instantly water was pouring out the corner of the pantry near the fridge into the floor. Opened the floor of the pantry to find the sink line has popped out of the drain. Had to wait until Monday morning to get it to a service center and they can not guarantee its not going to happen again. I'm reading not 1st to have this issue. Service center said the manufacturer has no guaranted remedy to keep this from happen again.

[Mark54]

Originally Posted by petedoll50@gmail.com

So here is a pic of what keeps coming off....my question now is should the elbow
going in to the tank move freely with the slide going in and out? If so it's not doing it easily...can it possibly be to tight and is it just threaded in to the tank? I'll be trying to get a hold of Thor tomorrow




Attachment 37237

I'd be adding screen to that vent- mice can jump 3-4'

[EA37TS]

Originally Posted by Steph0122

Just bought a Brand New 2024 Challenger 37FH less than 24 hours flooded the inside. I thought there was some red flags at pick up and was lead to believe it was ice maker/water in the door that the tech "accidently" did it. Slides were closed at this time. We didn't open the slides again any until we got to our next stop the next morning when we got to our 1st hook up site. My husband went to wash his hand and instantly water was pouring out the corner of the pantry near the fridge into the floor. Opened the floor of the pantry to find the sink line has popped out of the drain. Had to wait until Monday morning to get it to a service center and they can not guarantee its not going to happen again. I'm reading not 1st to have this issue. Service center said the manufacturer has no guaranted remedy to keep this from happen again.

Call Thor and ask for permission to use a mobile tech. Most RV dealer techs are capable of repairing a kiddie car let alone a complex vehicle. A good mobile tech should have you fixed in no time with a fix that will last.

[chunker21]

And next time do NOT buy an RV that has plumbing in a slide. Drains, water, gas supply, electrical connectors can all come loose, get pinched, or otherwise malfunction and cause serious issues. RV builders are lazy and incompetent and figure that the chances of damages occurring during warranty are worth the cost cutting instead of doing it right. It's possible to make flexible connections that have less chances of leaking and coming loose, but bottom feeder builders don't use them.

[EA37TS]

Originally Posted by chunker21

And next time do NOT buy an RV that has plumbing in a slide. Drains, water, gas supply, electrical connectors can all come loose, get pinched, or otherwise malfunction and cause serious issues. RV builders are lazy and incompetent and figure that the chances of damages occurring during warranty are worth the cost cutting instead of doing it right. It's possible to make flexible connections that have less chances of leaking and coming loose, but bottom feeder builders don't use them.

Our prior Challenger had the kitchen in a slide and we never, repeat never had a problem with any plumbing or electrical. My current rig has the stove and microwave in the slide and again no problems.

Your statement is subjective at best and no one should walk away from any floor plan they like based on one person’s opinion.

[16ACE27]

Originally Posted by EA37TS

Our prior Challenger had the kitchen in a slide and we never, repeat never had a problem with any plumbing or electrical. My current rig has the stove and microwave in the slide and again no problems.

Your statement is subjective at best and no one should walk away from any floor plan they like based on one person’s opinion.

Our ACE also has the kitchen in the slide. Never had a leak on either the supply or drain hoses either.

[TheGoodLife]

Our 2022 Quantum required enlargement of the opening between the bedroom wall and front slide through which the kitchen sink drain line ran to the gray tank, along with a furnace duct and water lines.

[Jimbo56]

Originally Posted by chunker21

And next time do NOT buy an RV that has plumbing in a slide. Drains, water, gas supply, electrical connectors can all come loose, get pinched, or otherwise malfunction and cause serious issues. RV builders are lazy and incompetent and figure that the chances of damages occurring during warranty are worth the cost cutting instead of doing it right. It's possible to make flexible connections that have less chances of leaking and coming loose, but bottom feeder builders don't use them.

I had a Keystone 5er for 16 years. Kitchen was in slide. Fridge, sink, etc. Fresh water lines, drain lines, gas lines, electrical wiring. I never ever had a problem. In fact I wish the Keystone plant built motorized vehicles.