SeaLand Duckbill Valve - Manual

SeaLand ® Duckbill Valve Installation Instructions
1. Flush a substantial amount of soapy water through the pump.
2. Turn off electrical power to pump.
3. Remove both suction (inlet) and discharge (outlet) hoses from the pump.
4.
T-SERIES DISCHARGE PUMP ONLY: Remove both valve nipples from suction (inlet) and discharge (outlet) sides
of the pump. (Important: T-Series pumps have left-hand threads on the valve nipples. Turn clockwise to remove.)
Replace old duckbill valves (one required for each side). See T-Series Pump Diagram for correct valve orientation.
S-SERIES VACUUM PUMP ONLY: Remove both valve nipples and valve adapters from suction (inlet) and
discharge (outlet) sides of the pump. Replace old duckbill valves (two required for each side). See S-Series
Pump Diagram for correct valve orientation.
5. Tighten valve nipples and adapters one-half turn beyond hand-tight. NOTE: Overtightening will cause valve
distortion and early failure.
6. Install both suction and discharge hoses and secure with hose clamps.
7. Turn on electrical power and flush water through system to prime pump. Check system for leaks.
S-SERIES VACUUM PUMP T-SERIES DISCHARGE PUMP
600344404
Dometic Corporation
13128 State Rt 226
PO Box 38
Big Prairie, OH 44611
1-800-321-9886
© Dometic Corporation