MONOFLEX^TM Lysimeter Accessory Items

TUBING
MONOFLEX^TM provides tubing to connect the lysimeter to the surface. Usually 1/4' OD Teflon® or polyethylene is suitable.

ELECTRIC VACUUM PUMP (12 VOLT)
Capable of pulling 25 inches of mercury on several lysimeters simultaneously.

MONOFLEX^TM SELECT SILICA FLOUR
Silica, 200 mesh (99.8% pure) is available in 50 Lb (23kg) plastic pails. Allow a minimum of 1 pail per installed lysimeter. Mix each pail with 2 gallons of distilled water to make about 6 gallons of silica slurry.

VACUUM PRESSURE GAUGE ASSEMBLY
Allows for constant monitoring during the pore water extraction phase. During the sample recovery phase, it will alert the user to potential over-pressurization.

TEFLON® STOPCOCK AND DELRIN® SHUT-OFF VALVES
Designed to allow easy sealing of the sample delivery and vacuum/pressure lines when not using a lysimeter well head assembly. The Teflon® stopcock is used with Teflon® tubing, the Delrin® shut off valve is used with polyethylene tubing.

LYSIMETER HEAD ASSEMBLY
Designed for placement on the casing at the ground surface, it provides a neat and secure termination of the tubes from the lysimeter. A permanent vacuum/pressure gauge and taps for the vacuum/pressure and sample line are mounted beneath the weatherproof cap. Stopcocks and gauge assembly are not needed with Head Assembly.