plumbing question

[pcdreams]

I'm working on our old bathroom (fun) plumbing and had a question about replacing the lead pipe. Under the house we have the main (sewer?) line which is 4" cast iron. The tub drain as well as the lavatory drain both attach to this. The ends where they attach are 2" and from there there is a lead pipe that leads up to the drains of each drain in the bathroom.

I've never worked on this type of thing before but I'm thinking I saw a rubber coupling that would fit over the 2" cast iron and then I'd slide the 1 1/2" pvc into that.

Does this sound correct or am I missing something?

[dave_p]

Hi, the answer is yes.....these rubber couplers are great for what you are working on. Often when working on older bathroom plumbing and replacing rotted floor, the main drain line has shifted around a little, or the house has. These couplers make great transition tools for converting the main pipe or toilet drain, which everything else dumps into below the floor, to pvc pipe which is easier to deal with generally speaking. If you are simply trying to transition a small pipe to a larger diameter cast iron pipe, then you can use a rubber coupler, but you may need the one which is actually a reducing variety,1 1/2 inch x 2 inch in this case. Be sure and measure the outside diameter on both.....so you can get the right one while at the building supply or plumbing house. If you forget.....usually you can measure one off the shelf while there to get what you need . Hope this helps. dave_p

ps. remember that you can stretch the rubber a little when necessary.

[uncle Will in In.]

You made a believer out of me. Check with hardware or plumbing stores to find the rubber reducers you need. Measure the outside diameter of both pipes to be certain what you are getting will fit.

[pcdreams]

that was my next question. is the 2" and 1 1/2 inside or outside diameter. LOL

ok Time to get to work