SEWAGE DEPARTMENT TRAINING PROGRAM
How to Build a Free Access Gravity Sandfilter
To begin excavate the hole in which the tank will be set. Place 6 inches to a foot of sand or gravel in the hole and rake to level. BACK NEXT Back to Program Index Back to Home Page
To begin excavate the hole in which the tank will be set. Place 6 inches to a foot of sand or gravel in the hole and rake to level.
BACK NEXT
Back to Program Index
Back to Home Page
