You could collect the water in a temporary above ground swimming pool where the sand can settle out and return some of the water back into the casing to keep the well from running dry. I did that alternately, varying how much water I returned to the well until my recovery rate improved enough to run the pump at max flow until the well ran clear.
It is possible that no amount of developing will ever result in clear water. It all depends on the formation. Another well could end up in the same formation or not.