Use the body of the trap as the pipe sleeve
(with or without extension piece) to position and screw to formwork. (Please use extension piece if concrete exceeding height 4 inch)
Make sure to fit on the black cap to stop any extra concrete from entering into body during concreting.
Concrete is covered to the top of trap during concreting, leaving only the cap exposed
Removed formwork of soffit from bottom, leaves a clear opening at the bottom for installing (2” or 3”) bottom outlet
Be sure to use good quality PVC solvent cement (PVC glue) to join bottom outlet to the base of the body.
Make sure to fully push the bottom outlet into the body under concrete soffit before joining the fitting by others to start piping work.
After completed install bottom outlet, joining the fitting by other to start piping works.
After water proofing or ponding test, remove black cap and place collar into position. Ensure it sits perfectly in body trap and during cement screeting to suit collar and tile laying level.
Make sure collar is flush with tiling work to ensure smooth flow of water in future.
Drop in bowl/container into body for water seal and future ease of maintenance.
Also drop the bell cap into container for completed water seal.
Lastly, drop in grating to complete installation of floor trap.