Stuck Pump In Casing

Pulling old pump from casing, pump got stuck about 30 feet from surface. Stopped so i didnt break the pipe off but need help to free up pump, lots of iron and scale build up in the well. Just used for watering is their any kind of acid to dissove build up that can be used to. thanks for your help

Whatever you do, do not put anything in the well, it will just complicate the fishing efforts.

What are you using to pull it with? Do you have a powered hoist etc?

gotter done

yes we have a 3700 lb wench so we are so careful not to pull to hard . thanks for your reply we were able to free it up by pumping 1000gal of water from the top of the casing past the pump. The pump was still working so we was able to suck the water past the top of the pump to free it up. I think the problem was at the water line.