If this is to service the entire residence, then it should be a duplex system with alternator, so that a pump failure will not disable the entire drainage. There should be a emergency/high water alarm to signal if both pumps have failed, or if the scheduled pump is not operating. A normally closed water valve in the supply to the building connected to the high water alarm will turn off the water to the building if the pumps, or power, fails, thus avoiding a flooded house, due to continued water usage.: Please provide recommendation for a reliable grinder pump to service a 5000 sf home. Im about to purchase lot, but have other options. Please advise whether situation requiring a grinder pump should be avoided. I have no experience with pumps and I am concerned about reliability, o&m costs, etc. Thank your for your help.