[BoxAlarm]

Hey Folks,
Got the old tub out, easy part.
Hard part...(for me)
I have the drain exposed (see pics below) but can't figure out how to assemble from the hole in the tub, to the drain itself in a secure, watertight, manner.
It seems like brass or copper... There are threads, and collars, but I'm not sure what the point of those are? Do I need brass/copper pipes to go into them? How do they attach? The old ones seem like they just "sat" inside, and these tightening collars don't seem to have function. What piece of this puzzle am i missing?

 

[BoxAlarm]

Some more pictures...

I guess I just need to replace the drain assembly. Or could I just find parts to rehab this one?

 

[oh'mike]

I would buy a new drain set--why reinstall one that old?

You will need a new nut and washer for the 1 1/2 " threaded nipple that is part of the house drain.--Mike--

 

[BoxAlarm]

I was thinking to try to save the ~$100 or more of the cost of a brass drain assembly. Ideas?Thoughts?Opinions?Thanks!

 

[oh'mike]

They are about $60---

To save that antique one you will need two new nuts-two new seals for the nuts--a new rubber washer for the drain and a new rubber gasket for the over flow.

Before you think about it--see if it even fits the new tub---they are cut to fit the tub when installed.

I've never heard of leaving a decades old drain set under all the work and money of a new tub and surround---however,It's your house and your choice.----Mike----

 

[BoxAlarm]

Mike,
You da'man.
Thanks.

 

[BoxAlarm]

The adventure continues...

Do I need to use a brass drain assembly? Or can I use PVC? In either case, I think that drain (pictured above) is brass. Does a PVC-to-brass union exist? Pros/cons to this material assembly?

 

[oh'mike]

PVC drain sets are fine--I install the brass ones most of the time myself I like the piston type stoppers because they are the least trouble over the life of the tub.

Pvc drain sets out sell the brass ones 100 to 1 I'm sure,I've never had service call because of premature failure-----I use the PVC drains on most of the deep soaker tubs and almost all whirlpool tubs.

I've never had a problem with either one.----The PVC sets are a lot cheaper than the brass---

If cost is a thought--go for the PVC.----Mike-----

 

[BoxAlarm]

So is there any problem hooking a PVC drain assembly to a brass drain pipe?

 

[oh'mike]

None at all---The drain looks like cast iron with a steel 1 1/2 inch nipple--

The coupling at the nipple usually requires the use of a rubber washer and a steel or brass nut,not the nylon washer in the photo.

These are easily available in any store.---Mike---

 

[BoxAlarm]

I went with PVC. The attached picture is the opening of the tee, where it will (somehow) connect to the drain nipple (pictured earlier.) Now all I need to do is figure out how to connect the smooth inner coupling of the tee to the threaded nipple of the drain.

You're telling me that a gasket + collar nut would do, but will I still use a brass one for the PVC? OR should I use a PVC collar since that's what the T is made of?

 

[BoxAlarm]

Resolution...hopefully.

See pictured...
I'm using a female adapter, which will fit into the Tee, and then screw directly to the nipple. I plan on sealing it with some pipe dope.

FTW:

 

[TheEplumber]

I think you've picked the best choice. Don't over tighten the female adapter, it might crack