A cleanout plug and flush cover are set into a finished concrete floor or pad, sealing the top of the sanitary drainage system. A riser extension connects the cleanout assembly down to the main line, using a Buna-N or Viton seal and caulking at the joint. The riser extension does not need to be larger than four inches in diameter.
COVER CLEANOUT PLUG MAIN LINE FINISHED FLOOR OR CONCRETE PAD CAULK, BUNA-N OR VITON SEAL RISER EXTENSION UP TO CLEANOUT. NEED NOT BE LARGER SIZE THAN 4" 19 18 20 21
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