How does the deep pump fall down?

If well washing wells in the wells thoroughly (without sludge), the recommended use of professional well pump salvage device, fishing machine will become open mouth, with teeth, down to the wells pump position through the closure of the teeth, will firmly bite the wells pump mouth flange, lifting weight, the greater the teeth bite tight, well pump can be raised, the general professional drill team should have.

If not well formed (downhole sludge more), wells pump out into the wells too long, drilling used for mud walls will precipitate to the bottom, slowly to pump the wells buried, wells pump around the mud will be firmly stuck in the dead pump body, so only the first use of air compressor washing wells, washing side salvage, so the cost of the more money, the likelihood of salvage is small.