The GENERAL CARBON Sewer Pure System controls offensive odors escaping from manholes. Foul smells generated in sewage collection systems or forced mains are vented through a canister containing activated carbon. Contact with the carbon cleans normal vent air of many contaminates that are the cause of bothersome complaints.
The system is made of two pieces. The first piece is an isolation skirt. This durable plastic fabrication is field trimmed to fit underneath the manhole cover. It seals escaping air inside the collection system and directs it to a center opening. A drain device allows collected water to drain into the sewer system without releasing noxious fumes.
The second piece of the system is the media canister. It is made of corrosion resistant PVC and is inserted in the center of the skirt. A gasket seals air from bypassing the canister. The odorous air enters through the canister bottom, travels up through the filtration media and is exhausted through the top cover.
After the media becomes spent, the canister easily lifts out and can be changed-out. Activated carbon, impregnated carbon, potassium permanganate impregnated media or a mixture of any of the above is available for your application.
Caution!
Wet activated carbon removes oxygen from air causing a severe hazard to workers inside carbon vessels. Confined space/low oxygen procedures should be put in place before any entry is made. Such procedures should comply with all applicable local, state and federal guidelines.