Help end the borehole pump failure problem

More than 30 percent of all hand drilled boreholes have failed. Some failures are due to pump failures caused by sand or other debris in the borehole. In fact, sand in a well casing will ruin nearly every type of pump that is available. It is generally known that most hand drilled boreholes are pumped by hand powered pumps. Those pumps often times have one part rubbing in contact with another part. Where parts rub together, sand can become lodged and destroy the pump in short order. There are currently a couple of methods of pumping shallow boreholes using hand operated vacuum pumps with the rubbing parts elevated outside the screened area. Those pumps, however, have sliding parts that can become contaminated with sand and wear the pump out long before its normal useful life. Open the sketch of the new sand pumping hand pump here: Suction jet pump

Other pumps have rubbing parts within the borehole near the source of sand that a poorly developed borehole may contain. Those pumps are normally rod operated with a operator going down the borehole and a handle above the top of the casing. Some of those pumps have lever action and will bring water from a considerable depth. However, like the above ground version, those pumps also fail early due to the sand content of the borehole.

There really is no pump available on the market today that will pump by hand from great depth and provide water without the pump failing due to wear caused by sand intrusion.

The purpose of this post is to offer to all people of the world a open source, free, method of building a pump that can handle sand and pump from any depth borehole. People reading this post are invited to take my design and modify it to their own use. A modification by you to this design should be patentable if filed within one year of this disclosure. There is no requirement to pay me or anyone for rights to this method. I have done a preliminary patent search on this device, it is most likely patentable as it stands and modifications will enhance the chance of a patent.

The person that designs the best product is invited to file for a patent in their country and if that provisional patent actually receives a patent, then the patent and any proceeds from the patent will belong to that person in their country. (I am not a patent attorney so this is not advice,. it is simply my opinion.)

I have videos on YouTube that show a working model of the device. It is possible that rather than using an airlift on the suction side, other methods of pumping will be possible. I have not tried, centrifugal, piston, water jet or other methods. The pressure at the jet nozzle will be proportional to the distance from the nested pump output and the nested eductor. The device has no pumping parts in contact with sand or other debris in the drill fluid. The only parts that could wear are the check valve and jet. This is the perfect pump for hand operations. All it needs is a bellows or piston type air pump.

A fluid jet would only require a piston pump. A suction pump or jet pump that is hand operated would also work.