A trap primer is mounted below the vacuum breaker on a flush valve assembly. One-half-inch hard-drawn copper tubing connects from the trap primer, runs down the wall through a chrome escutcheon, and extends horizontally to the floor drain with a slope toward the drain at one percent minimum. The copper tubing ties into an existing floor drain equipped with a trap primer inlet.
BELOW VACUUM BREAKER. CHROME ESCUTCHEON TRAP PRIMER. MOUNTED FLUSH VALVE PRIMER INLET (E) FLOOR DRAIN WITH TRAP FINISHED FLOOR 1/2" HARD DRAWN COPPER TUBE SLOPE TOWARD DRAIN @ 1% MINIMUM 1 2 3 4 5 6 2 6 1 5 4 3
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