For the measurement and control of water pressures in soil and rock, the Hydraulic Piezometer is able to measure both positive and negative pressures.

The Piezometer tip comprises a porous ceramic filter vessel. Twin hydraulic tubes connect each filter tip to a remote reading terminal where the hydraulic pressure may be read by either a Bourdon Gauge or an electrical pressure transducer.

Typical applications include:

• Construction control and stability monitoring of embankments, earth dams and their foundations
• Uplift pressures and hydraulic gradients in dam foundations and abutments
• In-situ measurements for permeability changes and evolution
• Borehole and push-In types available