Biological Filters
An old distributor driven by a geared wheel.
General view of works from inlet end.
Filter distributor system inoperative
(note liquors only being distributed in one place on media).
Different types of distributors for circular or octagonal biological filter bed (note the very heavy moss growth on top of media which is stopping air getting into filter bed media ).

Small above ground Biological Filter Beds.
Paddle wheel driven distributors.

Liquor distribution onto filter bed some sparge plates not working.

Centre feed drum with dosing syphon inside.
Biwater (Ames Crosta ) Simplette biological filter distributor
View of sewage treatment works with weed growth on media .
Overall view of sewage treatment works with inadequate fencing.
Outfall channel from filter bed - no humus tank.
Tipper tray for inadequate liquor distribution over filter bed.
Corrugated sheets providing inadequate liquor distribution over filter bed.
General view with septic tank in foreground and filter bed.
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