Sunday, March 28, 2010

Drainage

After grading the area, the next step was to install drainage, a key component in any putting green. To build the green to USGA specs, there must be drainage trenches with drain tile and then an additional 4 inches of pea gravel.
18 tons of #8 gravel from Luck Stone. Hauled it all by hand.
Drainage tile going in trenches with gravel back fill. The tile has small slits to collect water and carry it out the bottom of the green. Duct tape is used on all joints to prevent them pulling apart.
Drainage Layer complete with 4 inches of gravel. Note the clean-out pipe for the drainage tile at left of the picture to clear out gunk and dirt.

Grading

This is what the area looked like before I started leveling it. There was a slope of about 10% from left the right and about 4% front to back away from the house.
A bird's eye view of it all leveled.