The AR and SJ Pumps
If you have a well where the static water is between 40 and 200ft either the AR (40-100ft) or SJ (100-200ft) pump is for you.
Both the AR and SJ pump are of the same design with the only difference being the size of the piston and how much Stainless Steel cable is included. Please note that the piston size affects delivery. The AR pump will deliver up to 3.5gpm and the SJ will deliver about 1.5 gpm.
Both pumps are a cable and weight design. Pulling up on the cable (up stroke) moves water up in the pump and Stainless Steel weights in the pumps produce the down stroke. Note we rely on gravity not springs for the down stroke. Rigid pump rods are great but they are expensive and heavy, the cable approach economically gets the pump way down to lift water from deeper wells.
Going deep involves a lot of what is called “head pressure”. The piston seal must able to physically capture the water and displace it mechanically against this pressure. Rubber O-rings are what our competition uses but like windshield wipers they go bad over time. One pump manufacturer even supplies its customers with a replacement seal kit when they buy it. It’s obvious to them that the seal will eventually fail. We went with Teflon seals. Concentrated acids are stored in Teflon bottles, there really is nothing that can affect it and it is basically the slipperiest solid known to science, so that is why we chose this material for our piston seals.. Engineering data for the shelf life of various rubbers can be only 2-10 years. The shelf life of Teflon is “indefinite”. Our unique piston seals will outlast your well and deliver water when you need it.
Every wetted part of these pumps is either Stainless Steel, PVC or Teflon, so it is completely rust proof and will last for decades. Most people can install it in less than 2 hours. A pump lever handle is standard for these pumps since the pumping effort for deeper wells is high. Additional materials (drop pipe, premix concrete, steel pipe) are purchased by the customer (see install pdf or video for details).
Watch our demo videos here to see these pumps lifting water from bridges.