Ideas on how to Cap an exterior cast iron cleanout

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Marc M.

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So I was digging around in my yard the other day and found these two cast iron sewer cleanouts which do not have caps. They do not look damaged but there are no threads on them to screw in a cap. Any ideas on how to cap these?

I have 2 ideas with one being much more pleasant than the other. Could I attach a flexible coupling to the small lip and then extend it a bit with PVC and cap it with a PVC cleanout fitting? I'm just not sure that the coupling and band clamp would seal on such a short The other option I thought of was to dig down and cut the whole cleanout assembly out and replace it with PVC and the proper couplings. Any help would be appreciated.
 

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Marc M.

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Reach, Thanks for the reply. I found one of those and thought it may work but went with one of these instead. The clamp isn't fully seated on the lip but it seems to have a pretty good hold. Thanks again.
FEQC150.jpg
 

CountryBumkin

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Marc,
were those pipes buried underground? You said you were "digging around". If so, what kept the earth from falling in?

Are you on a septic tank or city sewer? Are these pipes in-line to the septic tank or street? Is it two separate pipes or part of a house trap fitting (like picture below)?

house trap.jpg
 
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hj

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That design works, but the one with the two pipes next to each other has "opposing combos" at the bottom facing away from each other, which created a "dead spot" between then that could NOT be snaked when it plugged up. I have had a few like that and it required a bent water jet to go through the combo and then jet backwards into the pipe. There was also a version with a single riser and a "delta" at the bottom to send the snake in either direction. When that one got clogged in the "dead space" the water just rose in the upstream pipe until it could flow OVER the delta and then continue downstream. They were a little easier to unplug, but mush harder to snake.
 
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