Waterra Foot Valves are used with Waterra Tubing and (optionally) with a Tubing Actuator. This forms the Standard Flow System which is the most popular Waterra Pump. This system is best suited for 1 inch to 2 inch ID monitoring wells and can provide lifts of 150 to 200 feet. Flow rates can be as much as 1 gallon per minute depending on tubing diameter.

A Waterra D-25 Foot Valve is made of acetal thermoplastic (Delrin) and has a 1 inch OD (25 mm). It fits with Waterra Standard Flow Tubing (1/2″ ID x 5/8″ OD), most commonly used for groundwater monitoring.