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Nick of Pittsburgh
Clay Drain Pipe
Nick of Pittsburgh

I have a clay pipe coming up in my yard next to my house to accept the downspout.

That clay pipe is cracked. I have replaced this in the past. But I can't find clay pipe in Pittsburgh.

Is there another solution?

I was thinking of REMOVING the cracked clay drain pipe and just repace it with PVC and just set the PVC section (about 2-3 feet of PVC) right on the section of clay drain pipe in the ground.

The clay pipe in the ground is 5 inches OUTSIDE DIAMETER. Then the section flares out to accept a section of clay pipe.

So I was thinking PVC drain pipe I see at the home center could be cut to length and set right on top?

Is this a dumb idea?

hollasboy
Re: Clay Drain Pipe
hollasboy

More info needed...where does this pipe terminate? Also, what is the condition of the remaining section(s) of clay pipe? Chances are, if the end section has cracked twice, the other sections are not in much better condition, and the line may have completely caved in somewhere that you can't see. You can't buy clay pipe anymore because it is outdated and there are multiple cheaper and easier products available in 2015. One final question - do you really need to drain your roof into a buried line, or could you just spout it away from the house and flow over the ground?

Nick of Pittsburgh
Re: Clay Drain Pipe
Nick of Pittsburgh
hollasboy wrote:

More info needed...where does this pipe terminate? Also, what is the condition of the remaining section(s) of clay pipe? Chances are, if the end section has cracked twice, the other sections are not in much better condition, and the line may have completely caved in somewhere that you can't see. You can't buy clay pipe anymore because it is outdated and there are multiple cheaper and easier products available in 2015. One final question - do you really need to drain your roof into a buried line, or could you just spout it away from the house and flow over the ground?

I had some guys installing windows and they were tossing out aluminum frames from the windows. I think they hit the clay tile. They wouldn't admit to doing it. But it was fine before the window job. I wasn't to happy when I saw it and to settle they gave me a few dollars.

The only part that is damaged is the last piece coming out of the ground. The line drains really well. I permitexed the clay pipe right now.

It's just that last section.

Oh you can still buy clay pipe. It's just MILES from me.

dj1
Re: Clay Drain Pipe
dj1

Clay pipes are still available at plumbing supply yards.

Switch to PVC or ABS if you can't get clay.

Nick of Pittsburgh
Re: Clay Drain Pipe
Nick of Pittsburgh
dj1 wrote:

Clay pipes are still available at plumbing supply yards.

Switch to PVC or ABS if you can't get clay.

Having trouble finding clay pipe that's why I wanted to use PVC.

My question can I just take out the damaged section and lay a section of PVC right on the bell of the clay pipe in the ground?

Would that work?

What should I do? All I can see for damaged pipe is that ONE SECTION that juts up from the ground!

If I just use one section of PVC would I need to join these together? The clay sections I saw just lay right on top of each other and they work fine.

dj1
Re: Clay Drain Pipe
dj1

To make a no leak transition from clay to PVC, you need a Frenco style adaptor. Avail at plumbing outlets.

Sombreuil_mongrel
Re: Clay Drain Pipe
Sombreuil_mongrel

I think you have to cut off the bell of the clay for it to work. A donut gasket would not be good here as the bell would be under outward pressure and eventually crack, while some adapter that goes on the outside of the clay will have the band clamps binding it together. I'd just take a cutoff wheel or grinder to the clay just below the damage, and use the Fernco there. Don't dig a bigger hole.
Casey

Nick of Pittsburgh
Re: Clay Drain Pipe
Nick of Pittsburgh
Sombreuil_mongrel wrote:

I think you have to cut off the bell of the clay for it to work. A donut gasket would not be good here as the bell would be under outward pressure and eventually crack, while some adapter that goes on the outside of the clay will have the band clamps binding it together. I'd just take a cutoff wheel or grinder to the clay just below the damage, and use the Fernco there. Don't dig a bigger hole.
Casey

I'm going to have to dig a bit. Just to get beyond the damaged section. And if I use the Fernco I want to bury it. Now the only Fernco I saw was for 4 inch clay to 4 inch PVC. But it looks like 2 different sizes on each end. I enclosed a picture.

But these clay pipes, I took one out YEARS ago and I just set a new one RIGHT ON THE BELL. They were NEVER cemented together, they just butted up against each other.

Now the OUTSIDE diameter of the damaged clay pipe is 5 inches.

Could I insert a PVC pipe INTO the clay pipe...if it fits? Would that be BAD?

I saw this on Home Depot:
http://www.homedepot.com/p/Fernco-4-in-Clay-x-4-in-DWV-Flexible-PVC-Coupling-P1002-44/100372311?MERCH=REC-_-NavPLPHorizontal1_rr-_-NA-_-100372311-_-N

hollasboy
Re: Clay Drain Pipe
hollasboy

Interesting...sent me on a Google looking for evidence of clay pipes being used today. In the Houston area, I am only finding plumbing repair companies specializing in replacing clay pipes from tree root intrusion. Not a single place that installs it new. Maybe more common up north?

Regardless, here's a site showing pics of clay pipe. First pic shows use of a Fernco coupling to connect clay to PVC. http://homerenovations.about.com/od/plumbing/ss/Sewer-Pipe-Types.htm#step1

dj1
Re: Clay Drain Pipe
dj1

"Could I insert a PVC pipe INTO the clay pipe...if it fits? Would that be BAD?"

You will get roots in there. With a Frenco, no roots can come in.

Mastercarpentry
Re: Clay Drain Pipe
Mastercarpentry

The OP described this as where the downspout enters the piping system so a perfect seal isn't much needed. If you can find ABS or PVC that fits without 'falling through' to where it may block the drain, just stuff it in there and use mortar or concrete grout to seal/fasten it. Good enough, and should the PVC need replacing you can wiggle it out andn slide a new one right in.

Done this a number of times myself as many older houses in the city were piped this way; the usual issue I have with these is that the piping got crushed so we have to replace the whole thing.

Phil

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