DescriptionSurge and Pump The use of the Waterra Pump and the Waterra Surge Block together is one of the most effective methods for developing monitoring wells because it simultaneously surges and pumps the well. This frees up silt and sediment in the sand pack and screen, and breaks down bridging, drawing these particles into the well and then removes this material from the well.Recommended Method of Use The recommended method for developing a monitoring well with the Waterra Pump and Surge Block is to begin the development process with the surge block near the top of the well screen. Operate the pump with the surge block in this position until the turbidity level of the water being delivered from the pump decreases to an acceptable level. Once this level is reached then the surge block is lowered in the well screen one to two feet and the process is repeated.Developing wells in this manner is one of the best methods, often resulting in turbidity levels below 10 NTUs.
