The outer tubing of the mechanical bladder pump is fixed in position on the base plate of the actuator with a simple compression fitting. This holds the pump in position inside of the well.

The inner tubing of the pump is attached to the roller block with a compresion fitting so it will be moved up and down as the actuator cycles.

The actuator does all of the mechanical work so you can monitor water quailty parameters and collect samples with ease when the parameters have stabilized.