Household lift system

How about a dirty-water submersible pump with a lift capability that exceeds 40ft?

Solids will settle down at the lowest part of the pipe and after 7 months vacancy may need unblocking.

You may have to purge the system with clean water regularly.

Have you considered a automated bailer type of system. lifting the waste per "bucket" and decant at the top. and continue until no waste present at the bottom.

Out of curiosity - Are you living in a hole?

Right, That is why I need some type of "self cleaning system" to prevent blockage and harding over the seven months.

No hole, just side of hill with requirement of septic system 100 plus feet from the river in front of the house.

Need a good brand complete system that is dependable.

Last point, if the economy continues downward, there may be an abundance of willing honey dippers to solve the problem at very low wages.

Thanks for the response.

Your problem can be solved by using a submersible grinder pump. This pump grinds the sewage while it pumps it. This allows it to be used in applications where the discharge pressure is up to about 85 feet and at flows around 40 gallons per minute. There are quite a number of manufacturers who offer this type system. Some notable ones are : Zoeller Engineered Products, Louisville, KY; F. E. Myers, Ashland, OH; Hydr-O-Matic Pumps, Ashland, OH; Barnes pumps, Piqua, OH; Environment One Pumps, Niskayuna, NY; Keen Pumps, Ashland, OH and many more. Your nervousness about the fact that the pump will sit idle for 6 to 8 months has no merit. I personally furnished 2,500 of these pumps to a recreational summer home lake community about 15 years ago and they all were non-operational during the off-months. The grinder pump reduces the solids in the stream to a slurry that is easily pumped through the lines and have adequate cleansing velocities to re-suspend the material for discharge from the system. You may want to Google "Grinder Pump Systems" to see what you find. Calling or otherwise responding to one or more of them should allow you to safely and satisfactorily select a pump system that fits your needs. If you get no resolution, please feel free to contact me through this medium and I will help direct you to a suitable outlet with selection and service capabilities. Good luck!