I appreciate your advice on this freestanding bathtub rough-in done by my renovation contractor.
- Is this set-up correct? If not: what is wrong with it?
- If we used this set-up: what might be bad impact/consequences?
- Most important: What should be the correct and best/practical set-up?
- The 1 ½” tub drain pipe should remain in same vertical location. Everything below it can change.
- The 1 ½” p-trap’s “U” (hidden by the trap arm) currently sits on the floor board.
- The 1 ½” secondary drain pipe flows from right to left (it's a straight pipe that runs along top edge of the 8” x 8” bulkhead):
- Before the sanitary tee: this secondary drain pipe starts 8 ft upstream with a vented pipe (at vanity sink’s drain).
- After sanitary tee: this pipe continues 3 ft downstream to a vented pipe... and then another 3 ft to a 3” primary drain pipe (which has another vented pipe).