How to Install A Sewage Pump System
The following excerpt is from Zoeller 2009 cited at It is necessary that all submersible sump, effluent, and sewage pumps capable of handling various sizes of solid waste be of the bottom intake design to reduce clogging and seal failures. Using a macerating unit all day every day will significantly shorten pump life. Normally I'd expect that correction to be the responsibility of the building owner. A septic pump commonly called a sewage grinder lift pump or lift station pump is used to lift sewage from a low point to a higher elevation to discharge to a higher level waste pipe.
Using a macerating unit all day every day will significantly shorten pump life. Advice is given for septic tank effluent or sewage pump selection and use. I would emphatically recommend a pedestal rather than submersible type pump - last way longer, and easier to maintain because the motor is not submerged - only the pump head.
Sewage Pump FAQs - Be sure to set the switch position and to adjust the float positions that turn the pump on and off in accordance with the manufacturer's installation instructions. Whatever your reasons for wanting a bathroom below grade or away from the main drain, you no longer need to compromise or scrap those plans - sewage ejector pumps and macerating toilets show that where there's a will, there's a way.