A water holding system 1 including lining a hole 2 with both a permeable 10 and impermeable 20 to water layer in the form of a film or sheet, the impermeable layer 20 positioned exterior relative to the permeable layer 10 the hole 2 is filled with a water permeable filtration medium 3, wherein the water holding system 1 includes a valve 30 positioned at a base 1a of the water holding system 1 and an access pipe 40 including Agi pipe extending from the valve 30 to ground level 4.

A water holding system 1 including lining a hole 2 with both a permeable 10 and impermeable 20 to water layer in the form of a film or sheet, the impermeable layer 20 positioned exterior relative to the permeable layer 10 the hole 2 is filled with a water permeable filtration medium 3, wherein the water holding system 1 includes a valve 30 positioned at a base 1a of the water holding system 1 and an access pipe 40 including Agi pipe extending from the valve 30 to ground level 4.

A solid-liquid filtration assembly for removing solids from a solid-liquid mixture includes a filter module comprising a pan, to which a screen is attached, and a scraping arm, to which is attached slurry nozzles. A media bed on the screen separates solids from a mixture of a liquid and the solids. Filtrate drains from the pan via a drain tube. A scraping arm removes dewatered solids and soiled media from atop the media bed, forward of the scraping arm. The scraping arm also expels the dewatered solids and the soiled media from the pan, while slurry nozzles deliver the mixture to the media bed aft of the scraping arm.

A solid-liquid filtration assembly for removing solids from a solid-liquid mixture includes a filter module comprising a pan, to which a screen is attached, and a scraping arm, to which is attached slurry nozzles. A media bed on the screen separates solids from a mixture of a liquid and the solids. Filtrate drains from the pan via a drain tube. A scraping arm removes dewatered solids and soiled media from atop the media bed, forward of the scraping arm. The scraping arm also expels the dewatered solids and the soiled media from the pan, while slurry nozzles deliver the mixture to the media bed aft of the scraping arm.