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No-dig solutions to clay pipe sewerage |
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Feb 04, 2012 - 5:47 PM - by Pyrrho
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Situation: The house is old, ca. 1930's. Clay pipe runneth from the house to the septic tank. Yon pipe hath separated just beyond the basement wall. I know this because I can peer into the pipe from inside the basement and see where the separation occurs. There's about a 3/4" offset for some reason. A clog of toilet paper landed there some time ago and I cleared that with a broom handle--but that's a tangential issue.
The problem: how to seal the breach without having to dig. Digging would not be such a problem had the previous owners not built a back porch and concrete patio over the back of the house where the pipe runs.
Options under consideration:
1. Sealing the gap with hydraulic cement or plumber's putty or some other water-impervious viscous substance. This would be a challenge of manual dexterity and long-distance tamping with a stick and a DIY flange of some kind to form the putty into the separation.
2. Shoving a narrower-diameter rubber reducing fitting down to the separation and jamming that in there to span the gap. Might also include sufficient plumber's putty around the narrower end to help seal the deal.
3. Crawl under the porch and dig down 4 feet with a small shovel and enjoy the effluent while I use a reciprocating saw to cut the old clay pipe, somehow place an expansion coupling on the offending pipe ends, fasten tightly, refill the hole, and call for help to drag my fat ass out of there the way they have to drag cavers out of tight spots they have no business squeezing into.
4. Call a professional and pay $x,xxx, American.
We're talking 4" OD pipe. Cast iron runs through the basement wall to where the ostensible clay pipe used to join it. Could be steel pipe out there or PVC--I can't tell absolutely, only that it appears to be the same ID as the 4" OD.
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12 Replies | 118 Views
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