Front view of model.

Recharge area with aquarium pump on right. Discharge area with simulated stream on left. Water enters
the geologic profile in the recharge area on the right and leaves the profile in the discharge area (stream)
on the left through holes on the back wall. Head difference between recharge and discharge areas is 10 cm (4”).
Piezometers are open at pipe end only. They contain white cotton balls to prevent sand from entering.