

PPP PR-500
What is a Plumbing Trap Primer?
- Will prime up to 2 floor drains with DU-U or DU-4 units.
- This valve is designed to be installed on ½” to 1 ½” cold water line, feeding a flush valve or other open and closing valve supply line that is frequently used.
- Trap Primer valve makeup line to floor drain is suggested to be a minimum of 12” off the finished floor before a 90° elbow can be installed.
- No adjustment required
- The furthest recommended distance of makeup line is 20’ to the floor drain.
- Trap primer make up line must have continuous slope to the floor drain (consult your local code requirements).