Posted by Bud..Suncoast Plumbing Inc. on November 26, 1998 at 09:37:25:
In Reply to: installing bathtub in basement posted by Mike Junge on November 26, 1998 at 01:12:38:
Mike:--The trap for your new tub should be part of your rough in. If it is a standard type 5'tub,
center a 2" "P" trap opening 14-1/2" from the back wall and 1-1/2" inside the wet wall. Be sure to reduce the trap size to 1-1/2" with a bushing and a piece of 1-1/2" pipe stubbed up for the drain connection. A opening in the floor of at least 8" x 12" is needed to facilitate an easier tub set after your inspection. After the tub is installed , sand can be put in the tub box (hole) and than liquid asphalt poured in to keep little critters from gaining entry. Lots of luck...Bud.
I have a rough-in in the basement. Does the drain line for the tub usually have a trap included as part of the rough in? If not, do you excavate through the 4 inches of concrete to install the drain trap? How deep do you have to go?