Waterra footvalves or inertial pumps have long been a reliable and effective way to sample groundwater. They consist of a one-way checkvalve which connects to a length of BioTubing. Oscillating the tubing up and down in the well produces a flow of water. The tubing can also be connected to external pumps such as the Waterra Powerpack or PowerPump. Waterra footvalves can be a great sampling solution for narrow diameter wells.

Fieldtech Solutions stock a range of the most popular sizes such as the D25, D32, and D16 footvalves. Each of these can connect to our BioTubing which allows it to function as a manual groundwater pump.