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04/24/2019
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Fishbox Pump
The 320EXP is equipped with a diaphragm pump called the gulper grouper (pictured
top right). The Whale Gulper Grouper pump has no impeller to clog or burn out. Unlike
impeller pumps these have no-choke valves that easily pump out fish box waste. This
pump will pump both fish boxes through a system called a flooded T (pictured bottom
right). The flooded T allows both boxes to have a centralized drainage location that
can be operated by a single pump
Troubleshooting
Electric Motor Runs but doesn’t pump
•
Disconnect pump and turn off all power.
•
Disconnect hoses and unscrew housings.
•
Check entire hose system for blockage.
•
Inspect tricuspid valves for blockage or inverted valve(s).
•
If valve(s) are blocked, remove blockage, re-assemble the pump and continue
use.
•
If a tricuspid valve is inverted, replace with a new tricuspid valve, reassemble
the pump and continue use.
If the electric motor will not operate, check that:
•
The isolator switch is on.
•
There is 12 volts at the battery terminals.
•
The in-line fuse / circuit breaker are operational.
If the fuse / circuit breaker has blown, check for debris in pump head and clean out
if necessary. Replace the fuse or re-set circuit breaker and run the pump.
