Can I just Tap into the kitchen horrizontal drain in the basement made of metal to add an island drain made of PVC are there any codes or cautions I need to know about. I have the upper portion beneath the sink in the cabinate figured out. Should I use 2" PVC and does it matter at what point I cut the metal to y in the new drain. Thanks in advance. I'm actually considering taking a plumbing curriculum and getting a diploma just for home repair knowledge. A local plumber wants 1500 buckaroos to run the drain and he is going to use an AAV wich to my understanding is not legal in my area, but he says that everyone uses it and will not be an issue if I ever sold my house. So that being the case I think I could do this job my self. Any input is greatly appreciated.
Maybe I am in the wrong profession 1500 bucks for a 2-4 hour job.... why?????
While $1500 may be a perfectly reasonable price when you consider the cost of operating a professional plumbing service company, you should be able to do this yourself.
You will need a way to cut the "metal" pipe (cast iron). You can either rent a pair of special "chain cutters" or buy a couple of special sawzall blades made for cutting cast iron. Expect to wear these out, cast iron is hard stuff. Cast iron is a slightly different diameter than PVC or ABS, so you will need a cast iron to PVC (or ABS) adapter on each end of the new wye fitting. Make this assembly up first and then cut out a section of the cast iron about 3/8" longer than the new assembly.
Once the cast iron is cut out, install the new fitting using No Hub Bands. Make sure the fitting is pointing the right direction.
I also would use an AAV. They work fine and are easily replaced if they fail. Just make sure you get a real AAV and not some spring loaded piece of junk. Studor is the number one brand.
Just don't be too hard on the plumber you called. If he's legit he's paying through the nose for worker's comp, liability insurance, payroll taxes and a pile of other costs associated with operating a responsible business. (Sorry for the soap box.)
One other thing. Make sure you use a wye and not a sanitary tee to make this connection.
there's a slight possibility it could be galvanized too, in which case, I don't think a chain cutter would do it.
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