A half-inch soft copper tube connects a flush valve to a floor drain inlet to maintain the drain trap seal. The trap primer is mounted below the vacuum breaker and at least six inches above the fixture overflow rim. The copper tubing runs from the flush valve down and across the floor slab to the floor drain equipped with a trap primer inlet.
1/2" SOFT COPPER TUBE FLOOR DRAIN WITH TRAP PRIMER INLET FINISHED FLOOR TRAP PRIMER (MOUNTED BELOW VACUUM BREAKER AND AT LEAST 6" ABOVE OVERFLOW RIM). FLUSH VALVE
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