PE Permeation Well Price, Intercepting Waste Environmental Rainwater Inlet, Overflow Well Standard Atlas Number

A surcharge well is a type of drainage inspection well, commonly found in intercepting combined drainage systems and urban drainage engineering pumping station systems, with the function of controlling excessive water flow.

A spillway well is a type of drainage inspection well, commonly found in intercepting combined sewerage systems and urban drainage pumping station systems, with the function of controlling excessive water flow.