Anyone ever replace a section of clay sewer pipe? - Page 2 - PeachParts Mercedes-Benz Forum

Larry Delor · #16 10-05-2006, 06:44 PM

Although cool stuff/technology, like an ignition module for an E420, it is not cheap.

A264172 · #17 10-05-2006, 06:55 PM

Quote:

Originally Posted by Larry Delor

Although cool stuff/technology, like an ignition module for an E420, it is not cheap.

I got a quote from a company that did trenchless that was $2000.00 less than the company that quoted with a trench... + less resurfacing afterward. (neither quote included resurfacing) Hardly a double blind study though, depends on who's doing the quoting.

kerry · #18 10-05-2006, 09:57 PM

I'm interested in the trenchless because I have a rental property build in 1890 and the sewer line is under a seven car garage all the way to the alley. If the line ever comes a cropper, I'll be looking for some kind of trenchless system as opposed to tearing down the garage.

#19 10-05-2006, 10:25 PM

Replacing sewer pipe is not rocket science, if you can put pipes together and know what a level looks like its not too hard.

Case 580
Hole
Pipe
Fill
Done

t walgamuth · #20 10-05-2006, 11:03 PM

the trenchless pipe sounds interesting. what is the cost?

tom w

A264172 · #21 10-05-2006, 11:35 PM

Quote:

Originally Posted by t walgamuth

the trenchless pipe sounds interesting. what is the cost?

tom w

The one quote I got was 3600-3800 for less than 50'... not sure if more than 50' involves more holes or not, or how firm the quote was as I had pretty much decided I could get in there and find it myself.

t walgamuth · #22 10-05-2006, 11:39 PM

kindof expensive.

but if it saved the garage it would be a good deal.

on my other office building the sewer ran under a parking lot that was 8" thick concrete with steel rebar. and of course it was clay and of course it was partly collapsed and so every few years i had to have it jetted out. tearing out the concrete was cost prohibitive. i also would have had to set a manhole in the alley. so the jetting every so often seemed a bargain.

tom w

Kyle Blackmore · #23 10-06-2006, 12:21 AM

Quote:

Originally Posted by MedMech

Replacing sewer pipe is not rocket science, if you can put pipes together and know what a level looks like its not too hard.

Case 580
Hole
Pipe
Fill
Done

Just watch out for other buried utilities,like gas and electrical/telephone.Bed the pipe in 3/4" clear fractured rock and tamp it in place with a shovel ,top it with a foot of rock and it won't settle. You also can buy rubber adaptor couplings to make the repair with pvc pipe , the pipe burster should go right through it no problem. A simple repair like this shouldn't need inspection.
Good luck

A264172 · #24 10-08-2006, 10:14 PM

Got er.
Trench ended up going 15 more feet instead of the five I anticipated.
The break was at the edge of the house.
the last 10 feet (all 4" clay) seemed askew so I replaced that length with PVC.

One of the rubber connectors (a 4" plastic to 6"clay type) that I used to connect to the large flange end of a 6" clay to 4" clay connector didn't want to seal well (due to the ribs on the outside of the flange I think).
I packed it full of plumbers putty (between the clay and the rubber and it seems to be ok. I'm going to leave it exposed till next weekend so I can monitor it for soundness before I back fill.

Thanks for the input.

t walgamuth · #25 10-08-2006, 11:35 PM

i think i would have used silicone.

it will cure up and the plumbers putty will not.

tom w

Kyle Blackmore · #26 10-09-2006, 12:42 AM

We use a material at work (I work for a civil contractor) called denso tape, it like burlap strips impregnated with petroleum jelly. Plumber's putty and silicone belong above the ground.

t walgamuth · #27 10-09-2006, 05:59 AM

will silicone deteriorate underground?

tom w

kerry · #28 10-09-2006, 12:06 PM

I'd be inclined to use epoxy resin and fiberglass cloth for this kind of repair. I've repaired drain pipes (above ground) with epoxy and they've been holding for 10 years.
Isn't Pam Anderson a testament to the long term durability of silicone?

#29 10-09-2006, 12:20 PM

Ferncos will never create an air tight seal unless the sewer is a force main the silicone or whatever won't mean a hill of beans.

A264172 · #30 10-09-2006, 02:03 PM

You guys are giving me some ideas...

...any opinions about epoxying inside the gap between the fernco and the clay... then epoxying around the edge then wrapping the hose clamps in the vasoline tape?

Or is there some legitimate way to deal with this connection?

Perhaps I copuld backfill with epoxy...