Macerator Pump
12 V macerator pumps for emptying waste (black water) tanks on boats and caravans: blade-type design, 45 L/min capacity Seaflo and Sailflo models.
Products (2)
- Sailflo FL-65A Macerator Wastewater Pump, 12 V, 45 L/min – $72.42
- Seaflo SFMP1-120-01 Macerator Pump, 12V, 45 L/min – $86.51
What is a macerator pump?
Macerator pumps are pumps that macerate the waste in toilet waste tanks (black water) on boats and caravans using internal cutting blades, then discharge the macerated waste through a small-diameter hose to a suitable discharge point without risk of blockage. The category includes Seaflo and Sailflo models running on 12 V with a capacity of 45 L/min.
Applications
- Emptying waste tanks on boats and yachts
- Waste tank drainage on caravans and camping vehicles
- Conveying marine toilet waste to the holding tank or discharge line
Where and how waste is discharged is subject to local regulations. The waste pump-out facilities at harbors and marinas must be used and applicable legislation must be complied with.
Selection criteria
The pump's voltage must be compatible with the boat's or caravan's electrical system (12 V or 24 V). Capacity (L/min) is selected based on the size of the waste tank and the desired emptying time. The inlet and outlet connection diameters must match the existing waste hoses. Macerator pumps are sensitive to dry running; the pump must be switched off as soon as the tank is empty.
Installation and use
The pump should be mounted close to the waste tank in an easily accessible location. The electrical connection must be fused and wired through a switch. The pump must only be run while emptying the tank and must be switched off immediately when the tank is empty; prolonged dry running wears out the impeller and seals. Wet wipes, pads, and similar waste can strain the pump's blades and must not be flushed.
Maintenance
Flushing the system with clean water after discharge reduces waste buildup in the pump and hoses. During winter, the pump and lines should be drained to protect against freezing. Unusual noise from the pump may indicate that a foreign object is jammed in the blades.
Frequently asked questions
Can a macerator pump run dry?
Prolonged dry running damages the pump; switch it off as soon as the tank is empty.
How is it different from a blade-type submersible pump?
Macerators are small, DC-powered units intended for waste tank applications; blade-type submersible pumps are for building wastewater.
What hose should be fitted to the macerator outlet?
Hoses suitable for waste applications that do not allow odor permeation should be preferred.
How long does the pump take to empty the tank?
An approximate time can be calculated using the tank volume and the pump's L/min rating.
Is a 24 V model available?
The models in this category are 12 V; check the product information for 24 V requirements.
Where can I find portable toilet options?
Browse portable toilets for portable solutions.