Tapping into the drain

[Aaron Fude]

Hi,

In the following picture, you'll see a big drain pipe (case iron) with two smaller 2" drain pipes going into it on the right:

I'm a DIYer and I would like to add another 2" drain pipe into the main drain. I just moved my washer and dryer to a new location and have a long PVC pipe going to the sink, which works but is totally ugly. This drain is within 3 feet of the washer.

What's involved here? Is it doable for a DIYer? How much would I spend on new tools, etc etc.

Many thanks in advance! I've gotten tremendous guidance on this project in this group so far. Thank you.

Aaron

[Speedy Jim]

What an odd arrangement...

Anyway, no special tools needed. Saw out a section of the left hand 2" drain. Get a plastic 2" TEE-WYE and 2 short pieces of 2" plastic pipe. Glue them into the TEE-WYE.

Order (2) #3001-22 Proflex couplings:

They will make a very rigid connection from the plastic to copper.

Provide a 2" P-trap for the washer to drain into (with a vertical standpipe). Be sure to slope the drain from P-trap to the cast iron.

You may/probably need a vent to protect the P-trap. A Studor mechanical vent is one choice, rather than running to a roof terminal:

And if you have any concern about this meeting Code or township regs, better ask them first.