Dump Valve mod

[Eggscape]

Looks like a great product for PVC pipe...unfortunately your trailer pipe is ABS and you should use ABS glue that dissolves/works with ABS.

My understanding is there is PVC glue, ABS glue and transitional glue for between the two products which this doesn’t appear to be.

Maybe up can find slow set ABS glue.

[Brian B-P]

Originally Posted by Donna D.

... I've worked with PVC/ABS before and the glue is unforgiving. I think that's what's holding me back.
...
So, do you think this stuff would work?
...
I'm already dreading dumping the tanks next Sunday after Spring NOG. That gray water valve is in the wrong dang place!
...
Hercules® Clear Heavy Body Slow Set Cement: https://www.oatey.com/products/hercu...ent-1509524372

I didn't know there was slow setting solvent cement - that's good information.

But this is PVC cement, so it would not be suitable for ABS (although it might work)... and Escape drain piping is ABS. The Oatey list of cements doesn't include any slow-set ABS products; it has one all-purpose cement (good for both PVC and ABS), but it is fast-set.

[Chris R]

Originally Posted by Donna D.

Hercules® Clear Heavy Body Slow Set Cement: https://www.oatey.com/products/hercu...ent-1509524372

I hope you do not use the glue you reference, it is only for PVC (white pipe) not ABS (black pipe).

I guess ETI made the mod after yours was made, our B/G handles are facing out.

[Donna D.]

Originally Posted by Chris R

I guess ETI made the mod after yours was made, our B/G handles are facing out.

Yeah, they did...


Sigh, after I posted I looked at the FAQs D'oh. On a motorcycle blog, someone posted putting the the glue in the refrigerator slows down the gluing time. Anyone try THAT? PLUS working in the cool morning or evening and not in the heat of the day. I'll keep searching, if I find anything SLOW for ABS, I'll let y'all know.

[Patandlinda]

Originally Posted by Donna D.

Okay group, I've been taking care of some long put off changes/maintenance to Ten Forward the last couple of days and this thread reminds me of another modification that I want to do. BUT, I've worked with PVC/ABS before and the glue is unforgiving. I think that's what's holding me back. Crooked, wrong elevation or the second part won't fit. Yes, I know to dry fit, but that glue!

So, do you think this stuff would work? Anybody used it? Supposedly there's about a 15 minute working time. Far better than seconds. Any downsides? When I do this mod, the trailer will sit for about a month before use, so the glue would definitely dry.

I'm already dreading dumping the tanks next Sunday after Spring NOG. That gray water valve is in the wrong dang place! Almost feel like I need to crawl under the trailer just to pull the handle. Sigh.

Hercules® Clear Heavy Body Slow Set Cement: https://www.oatey.com/products/hercu...ent-1509524372

Donna you need abs cement . That is pvc not for abs . One thing that can help is replace one section the last with plumbing rubber connection and the two clamps . Gives you wiggle room . Pat

[Patandlinda]

Originally Posted by Patandlinda

Donna you need abs cement . That is pvc not for abs . One thing that can help is replace one section the last with plumbing rubber connection and the two clamps . Gives you wiggle room . Pat

Dave or anyone , what is proper name for connector , many have been using for the 21 sewer hookup problems .

[Donna D.]

Originally Posted by Patandlinda

Donna you need abs cement . That is pvc not for abs . One thing that can help is replace one section the last with plumbing rubber connection and the two clamps . Gives you wiggle room . Pat

Yeah, gotta use ABS cement. Got it. I saw someone used a rubber connection for the gray water. I'll look for it, that may be the solution. I'm not even ready to do this modification, but already feel the jitters about gluing everything together.

[rubicon327]

Originally Posted by Patandlinda

Dave or anyone , what is proper name for connector , many have been using for the 21 sewer hookup problems .

Fernco flexible coupling
https://www.homedepot.com/p/Fernco-1...-150/100058870

[Patandlinda]

Originally Posted by rubicon327

Fernco flexible coupling
https://www.homedepot.com/p/Fernco-1...-150/100058870

Dave , Thankyou Sir ! Pat

[C&G in FL]

Donna, in situations similar to the one you are “dreading,” a trick I use is to “dry fit the parts together and get them to the exact position I desire. Then I mark the mating parts it the joining point with a small mark using a pencil (white PVC) or a yellow grease pencil (needed on black ABS). That way you can put the cement on both parts, pretty much align them correctly, and then make final positional adjustments within 10 seconds, thereby eliminating glue set-up problems. It also helps to use sandpaper to take sharp edges where one component fits into another, specifically the “male” component.

[Donna D.]

Originally Posted by C&G in FL

Donna, in situations similar to the one you are “dreading,” a trick I use is to “dry fit the parts together and get them to the exact position I desire. Then I mark the mating parts it the joining point with a small mark using a pencil (white PVC) or a yellow grease pencil (needed on black ABS). That way you can put the cement on both parts, pretty much align them correctly, and then make final positional adjustments within 10 seconds, thereby eliminating glue set-up problems. It also helps to use sandpaper to take sharp edges where one component fits into another, specifically the “male” component.

Thanks for the tips Carl, I appreciate it.

[Chris R]

Originally Posted by C&G in FL

Donna, in situations similar to the one you are “dreading,” a trick I use is to “dry fit the parts together and get them to the exact position I desire. Then I mark the mating parts it the joining point with a small mark using a pencil (white PVC) or a yellow grease pencil (needed on black ABS). That way you can put the cement on both parts, pretty much align them correctly, and then make final positional adjustments within 10 seconds, thereby eliminating glue set-up problems. It also helps to use sandpaper to take sharp edges where one component fits into another, specifically the “male” component.

and then practice a couple of times assembling all the pieces.

[tdf-texas]

Originally Posted by Donna D.

Okay group, I've been taking care of some long put off changes/maintenance to Ten Forward the last couple of days and this thread reminds me of another modification that I want to do. BUT, I've worked with PVC/ABS before and the glue is unforgiving. I think that's what's holding me back. Crooked, wrong elevation or the second part won't fit. Yes, I know to dry fit, but that glue!

So, do you think this stuff would work? Anybody used it? Supposedly there's about a 15 minute working time. Far better than seconds. Any downsides? When I do this mod, the trailer will sit for about a month before use, so the glue would definitely dry.

I'm already dreading dumping the tanks next Sunday after Spring NOG. That gray water valve is in the wrong dang place! Almost feel like I need to crawl under the trailer just to pull the handle. Sigh.

Hercules® Clear Heavy Body Slow Set Cement: https://www.oatey.com/products/hercu...ent-1509524372

The dump mod should be easy to do. Just dry fit the piping before using the ABS cement and everything should be fine.

After you get the dump mod done, you should have had enough practice with ABS to now be able do the kitchen sink Hepvo mod.
https://www.escapeforum.org/forums/f...all-12288.html

[dfandrews]

Originally Posted by Donna D.

Okay group, ...
So, do you think this stuff would work? Anybody used it? Supposedly there's about a 15 minute working time. Far better than seconds. Any downsides? When I do this mod, the trailer will sit for about a month before use, so the glue would definitely dry...Hercules® Clear Heavy Body Slow Set Cement: https://www.oatey.com/products/hercu...ent-1509524372

Donna,
It is Listed for PVC, but not for ABS (the black fittings and pipe), so I would not use it.

[tractors1]

Originally Posted by dfandrews

Donna,
It is Listed for PVC, but not for ABS (the black fittings and pipe), so I would not use it.

Some solvents are the same in both glues, and since it's not a pressurized pipe, should be fine. Could also slather some ABS glue over the outside of the actual joint if concerned. MEK is a common solvent for both materials, too. Evaporates slower than acetone.

[Patandlinda]

Originally Posted by dfandrews

Donna,
It is Listed for PVC, but not for ABS (the black fittings and pipe), so I would not use it.

I agree with you Don and use the proper glue . Pat

[Franram]

Originally Posted by Ron in BC

There isn't any hose involved. Pipe and fittings are ABS and they are solvent cemented together to form a monolithic strong and leak free assembly. Or, to put it another way, sudden death if you don't get them in the right position, there is no second chance to re-position them.

Ron

Make sure to do a.dry fit and mark white lines across fitting pieces so you can line them up as you assemble with glue.