How hard is it to install an S-trap under a sink?

And what tools will I need?

This is from someone with 0 plumbing experience 



A few years ago my mom renovated her house and the dumb contractors cheapest out and didn't put them in

>>2601340 (OP)

It's one of the simplest plumbing jobs you can do. All you'll probably need is a pair of channel locks to deal with the compression fittings. And possibly a handsaw if you need to cut something to length.

>>2601340 (OP)

Everything basically screws together itself by hand tightening and then you finish with tool tightening it.

PTFE Teflon tape goes on the male side and pipe dope goes on the female side.

When you are tool tightening, make sure that you are using a tool to counteract the pressure that you are putting on pipe following it so that you don’t rip it out of the wall.

>>2601340 (OP)

In my area, S traps are generally banned.

Look at your code and see if you really need a P trap.

No part of a P trap is tightened with a wrench or with tape or pipedope. They're all hand tight with washers and gaskets.



If you want to call the basin drain then okay dope and a wrench for that

You never put dope in a female fitting, it's too easy to use too much which might impede the pipe/fitting from fully engaging and you're almost guranteed to get some in the line. I know some people use both but typically you only need one and that's dope for permanent joints and tape for semi permanent. These also aren't the fittings you'd use either on, these seal entirely from clamping force and mating surfaces. Like flared tube, compression fittings, unions, etc. If OP has to deal with any pipe thread it'll be one fitting that's connected to old cast or galvanized lines, but if the contractor replaced the drain pipe it's probably plastic so he just has to cut it and use a slip joint fitting. Dope or tape would make the joint more likely to leak.

>>2601340 (OP)

Take a pic and I'll put together a shopping list.
