NovelBee 12V Boat Shower Sump Pump Box, 750 GPH Marine Greywater Kit with Float Switch and Removable Filter

The NovelBee 12V Boat Shower Sump Pump Box is a compact automatic marine wastewater solution that handles shower and sink drains at up to 750 GPH while preventing backflow and odors.

This self-contained sump pump box is engineered for small boats, RVs and marine installations where space is limited and reliable removal of greywater is important. It combines a 12V, 3A pump with an internal float switch, removable filter, and multiple inlet ports so you can collect waste water from a shower or small sink, then pump it overboard or into a holding tank. The clear screw-down cover makes inspection fast, and the check valve on the outlet prevents water from returning to the sump when the pump is off.

How does this unit keep unpleasant odors and splashes under control?

The pump box uses a tight-fitting screw-down lid and an internal geometry designed to minimize surface agitation. Those features reduce splashing and limit the release of odors into the cabin area. A removable mesh filter also keeps debris out of the pump so seals and impellers stay cleaner longer.

• Secure clear screw-down cover for easy inspection and splash containment
• Removable mesh filter captures hair and small solids to protect the pump
• Internal design reduces turbulence to limit odor transfer

What electrical and performance specs should I expect?

The system runs on 12V DC and draws a nominal 3 amps under typical load, with a recommended fuse size of 5 amps for protection. Its maximum pumping capacity is rated at 750 gallons per hour, and the pump head measures 9 inches, suitable for short discharge runs typical on smaller craft.

• 12V DC operation, 3A current draw for efficient power use
• 5A fuse recommended to protect wiring and the pump
• Flow capacity up to 750 GPH with a 9" pump head for moderate vertical lift

Can this pump manage multiple fixtures or different installation layouts?

Yes — the box includes several inlet ports so you can connect one or more drain lines from a shower or small sink. The pump’s automatic float switch turns the unit on and off as water level changes, allowing it to collect wastewater from multiple tapping points without manual intervention.

• Multiple inlet ports for combining shower and sink drains
• Built-in float switch automates operation based on water level
• Suitable for pumping overboard or into a holding tank (avoid large solids)

What maintenance and usage limits should owners be aware of?

The pump is intended for intermittent use and is designed around a 30-minute duty cycle. Regularly remove and rinse the mesh filter to prevent clogs, and avoid pumping large solid waste or tissues which could damage the impeller or clog lines. The check valve requires occasional inspection to ensure it seals correctly.

• Intermittent duty: recommended 30-minute operation intervals
• Clean mesh filter periodically to maintain flow and reliability
• Avoid pumping large solids or abrasive materials to extend pump life

Who is this for: The NovelBee 12V Boat Shower Sump Pump Box fits owners of small boats, compact liveaboard yachts, campervans and workboats who need a space-saving, automatic greywater handling solution. It's especially useful where multiple small drains feed a single collection point and where simplicity, low power draw and easy access for cleaning are priorities. Installers and DIY boaters will appreciate the multiple inlet options and the clear, screw-down lid for quick inspections.