Update to my earlier thread http://forums.taunton.com/tp-breaktime/messages?msg=118496.1 about trying to “jet” the bottom of a storm drain that doesn’t drain very well.

To my surprise it did “work” but it didn’t solve the problem.

The storm drain (or dry well) was full of water. The injection of high pressure high-volume compressor air with a 3/4″ pipe and a 3/8″ nipple on end, did inject holes well into the soil. We do have very sandy soil here on Long Island. Slipped the pipe 15 feet into the soil rather easily.

But since the ground is so saturated the level really did not go down much. The tanks were filled with sand, leaves, garbage and whatever oily muck slid down there from the parking lot. The air injection made a thick slurry of the muck.

The holes bored probably refilled with the muck slurry and prevented any water from draining.

The drains will have to be dredged of the muck.

 

Quantum materiae materietur marmota monax si marmota monax materiam possit materiari?