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Re: cutting cast iron soil pipe
Phil, I recommend a ratchet snap cutter as it will allow you to cut the pipe in a clean manner. These are available for rent at most major home improvement stores in the US. One can also rent one at a tool rental company. I rented mine for $35.00 the bulk of which was a deposit on the tool. Just a reminder when buying the coupling device ensure you ask for or get a 4 inch cast iron to 4 inch PVC coupling. A bit of vaseline will help you get the neoprene coupling to seat properly with the PVC if you encouter resistance. Good luck. If you need more assistance let me know.
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please hire a plumber, or a plumbing consultant. there can be many issues with installing a bathroom upstairs. Plumbing is not your only issue, you must think about other building codes as well, including the structure. you can't just start cutting!
The tank is 19&11/16 deep. the pipe is 3in PVC, SCH40. I will need a reciprocating saw w/8in blade, a peice of 3 in pipe 4 ft long and 2-3 in of SCH 40 slip couplings or 2-3 in compression couplings. ,Pipe joint compound, Glue and primer if using the slip coupling If your using the compression couplings,2-24 in pipe wrenches and a spade.Dig the line up exsposing the broken pipe plus about 12in to 18in more pipe on each end..Cut out the broken porsion plus 8 to 12 inoneach end leaving 6 in or more pipe on each end to tigh on to,Measure the distance of pipeyou have cut out .Cut your replacment pipe 1in shorter than the peice you cut out Slide your comp, couplings all the way onto the replacment pipe .Manuver pipe into place .Slide the comp, couplings onto the exsisting pipe half way,splitting the distance in the middle of the couplings.Put pipe joint compound on the threds and a little on the bevel of the rubber union gasket Tighten the couplings evenly.Check your grade it needs 1/8 in p, ft If its all right then backfill to the top of the pipe and tamp the earth making sure the pipe is commpleatly secure then back fill the rest of the ditch in 6 in increments tamping between layers.
You didn't state the size of the pipe or if it is PVC(plastic) or Cast iron. Two rubber couplings can be used to repair the joint. A 12" section, 6" on either side of the joint needs to be cut out. Cut a piece of schedule 40 drain/waste pipe same diameter as existing pipe to size(just under 12"). Take two rubber couplings (sized for your pipe) and place on each end of pipe joint, and tighten clamps.
This fix will work on cast iron pipe, but there may be another means of repairing the joint, so get back to me with more info about the pipe and joint.
if you have tiles in the bathroom wall, the answer is yes!
it is better to go fromthe back, where there is drywall.
since PVC is glue on, you have to cut out the pipe and reconnect.
make sure the bathtub faucet is not broken, and can be reuse.