Tub to shower pan conversion drain connection

[reno3204]

Sorry, this isn't a great picture, this drain was attached to a bathtub; I have replaced the tub with a shower pan. I need to connect a 2 inch drain, instead of the current 1.5, but I don't see anywhere here to get a good cut that would allow me room to add a coupler. Am i going to have to go all the way back to the main line or does someone have a genius suggestion...

 

[John Gayewski]

The tailpiece. Swing your trap and maybe use a 45° offset in the tailpiece riser with a bell reducer in it.

 

[Sponsor]

 

[reno3204]

The tailpiece. Swing your trap and maybe use a 45° offset in the tailpiece riser with a bell reducer in it.

Is reducing from 2 drain to 1.5 going to cause a significant issue?

 

[John Gayewski]

Is reducing from 2 drain to 1.5 going to cause a significant issue?

Generally not in this case. There are provisions in a lot of local codes for this. The case where you change a tub to a shower is a common problem and it's legal here in Iowa to make your shower into a 1.5".

Modern showers only drain about 2.5 gal per min or less. A 1.5" drain can do about 7. 5 gpm min and up to 15 gpm.

You might want to call your local authority to see if it's legal.

 

[Jeff H Young]

If you have room under there cut the bushing out and put a 2 inch trap. id cut it off flush with the 45 then use ram bit or take a tiny tim saw and make cuts in the bushing and chip the pieces out I think you call them axial cuts . hard to describe but a simple semi laborous thing to do probebly take you a half hour with a small tiny tim saw and screwdriver and hammer