“In testing, i used this valve as a foot valve for a very shallow well up in the mountains at my cabin. The 15' well is just a 3" PVC pipe submerged inside a plastic 55 gallon drum that has holes all over the outside upper 2/3rds that water flows into and out of... This foot valve eliminates the problem and makes it so as soon as we turn on a faucet in the cabin we have continuous water. It is handy to have the diagram of disassembly with this for the occasional cleaning.”