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214M models are utilized for sewage transfer from toilets to holding tanks and for pump-out and disposal from holding tanks. A solid, bronze corrosive resistant design can handle sewage, waste, toilet paper, cigarettes, cigars and most solids maceration of approximately 1 inch in size. The macerator is NOT designed to handle fruit pits, hard plastic utensils, prophylactics, cloth or sanitary napkins. Large vent openings separate the pump and motor with a stainless steel motor shaft and three conductor motor cord. The macerator wheel and impeller are easily replaced for serviceability.
Flexible impellers generate high rubbing friction unless lubricated by liquid being pumped. Lack of liquid will cause impellers to burn up. It is important to avoid dry start-ups. Usually sufficient liquid for a “wet” start is trapped in pump piping system during normal usage. If not, inject water or lubricating oil thru inlet or outlet ports or thru pipe plug openings on pump castings. (Caution - do not remove flush panhead screw holding pump body cam in position - see exploded view). It is most important to insure a “wet” start when a pump is being used for the first time in a new installation or after a prolonged storage period when all liquid has evaporated. Any plugs removed from pump body or cover must be re-tightened prior to start up.
IMPORTANT - DO NOT RUN DRY
Liquids compatible with neoprene can be pumped including fresh and salt water solutions and mild chemicals. Do not pump severe solvents or acids. When possible, flush pump with fresh water after each usage. Nitrile impellers can handle oil contaminated water and kerosene at reduced impeller service life. Extremes of cold and heat will affect impeller life. Limits of 40°F to 180°F should be observed. Do not allow liquid in pump to freeze. Drain pump by loosening cover screws. Use methyl alcohol based anti-freeze compounds such as Zerex, Shell Zone, Pyro Permanent, Permagard, or Dowgard.
Pump Inlet (suction)- All suction connections must be air tight and as short as possible to achieve lift. A suction lift of up to 4 feet is possible under ideal conditions. Because the suction line for sewage handling is of large size (1 1/2” pipe) a large volume of air must be evacuated to create vacuum and suction lift. This is why a “wet” start is essential to prevent overheating and burning of the impeller during the air evacuation and suction period.