Dry well filtration system
OwnerLester R. Mathews, John A. Workinventors
Life of this patent
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Abstract
A filtration system is provided for a dry well in the form of a buffer tank made of concrete to remove sediment and pollutants from water supplied from a header to an inlet pipe in the tank, so that the water exiting from an outlet pipe is free of particulate matter and pollutants. This is accomplished by providing a sediment pit and a baffle at the inlet side of the tank and then passing the water through a multiple stage set of filters having different aperture sizes. These filters remove particles and pollutants from the water as it passes through the buffer tank on its way to a dry well drain pipe attached to the outlet of the buffer tank.
Claims24
A filtration system comparising:
- means for minimizing clogging of a dry well by silt and gravel and removing suspended particles from water entering a dry well including in combination:
- a buffer tank having a top, bottom, first and second sides, and first and second ends, with a water inlet at said first end and a water outlet at said second end;
- means for connecting said water outlet to a dry well drain pipe;
- means for connecting said water inlet to a source of water input;
- baffle means for trapping silt and gravel to prevent such silt and gravel from reaching said water outlet, said baffle means comprising a baffle plate in said tank extending from said first side to said second side and from said bottom to a predetermined distance from said top near said first end and located with respect to said water inlet to prevent water flow in a straight line from said water inlet to said water outlet;
- and
- filter means for removing suspended particles from water passing through said tank, said filter means including a filter member in said tank and extending from said first side to said second side and extending substantially from said top to said bottom, said filter member located between said baffle plate and said water outlet to prevent particles of greater than a predetermined size carried by water flowing through said water inlet from passing through said filter member to said water outlet.
Dependencies are inferred from the claim text.