BELOW GROUND SEPTIC TANKS

300 & 500 Gallon Spheres 500 Gallon 1000 Gallon 1-Manhole 1000 Gallon 2-Manhole 1250 Gallon 1500 Gallon

The world’s leading manufacturer of polyethylene tanks, NORWESCO has been producing polyethylene septic tanks since 1980. With that kind of experience, NORWESCO offers you proven products that you can count on for years of dependable, trouble-free service. For septic system replacement and new home construction, NORWESCO‘s polyethylene septic tanks are designed for durability and quick, easy installation. Any NORWESCO septic tank can be transported to the job site in a pickup truck and carried by just two people. That enables you to install the tank on your schedule. All NORWESCO septic tanks are manufactured by means of the rotational molding process, which produces a one-piece, seamless, watertight tank. Polyethylene is unaffected by soil chemicals and by the chemicals and gases present in sewage, so NORWESCO septic tanks will not rust or corrode and require no additional coatings as other tanks do. NORWESCO’s strict quality guidelines ensure an environmentally safe septic tank. NORWESCO septic tanks come equipped with manhole covers and detailed installation procedures. Manhole extensions and lid/riser combinations are available to bring tank access to grade and to meet code specifications. The 750, 1000, 1250 and 1500 gallon sizes are available in both one and two compartment configurations. NORWESCO septic tanks are backed by a full three-year warranty and have been approved by state and local health departments from coast to coast. Where applicable, NORWESCO septic tanks have been approved by both IAPMO and CSA.

Across the United States and Canada, there are certain health code requirements that our tanks must meet. These codes are regulated by the state, county or province.

SEPTIC TANKS: STANDARD SINGLE COMPARTMENT
Gallon Capacity	Length	Width	Height	Height to Inlet	Height to Outlet	Manhole Diameter	Part No.	Availability
300 Sphere	-	54" Dia.	51"	44"	42"	1-20"	40182	A
500 Sphere	-	64" Dia.	64"	56"	53"	1-20"	40785	B,E,H,L
500	101"	51"	42"	36"	33"	1-20"	40014	A
750	96"	52"	58"	51"	48"	1-20"	40018	B,C,E
750	96"	48"	58"	51"	48"	2-20"	40690	G
750 Plumbed	100"	52"	56"	51"	48"	2-20"	40886	H
1000	101"	52"	66"	59"	56"	1-20"	40006	B,C,G
1000 NJ	100"	56"	62"	59"	56"	1-24"	40361	G
1000	102"	60"	58"	51"	48"	2-20"	***	B,C,D,E,F,G
1000 Plumbed	102"	60"	58"	51"	48"	2-20"	***	H
1250	116"	55"	66"	57"	54"	2-20"	***	B,C,E,F,G
1250 Plumbed	116"	55"	66"	57"	54"	2-20"	***	H
1500	133"	55"	66"	57"	54"	2-20"	***	B,C,D,E,F,G
1500 Plumbed	133"	55"	66"	57"	54"	2-20"	***	H

SEPTIC TANKS: WITH COMPARTMENT DIVIDER
Gallon Capacity	Length	Width	Height	Height to Inlet	Height to Outlet	Manhole Diameter	Part No.	Availability
750 (2/3-1/3)	96"	48"	58"	51"	48"	2-20"	40801	G
750 (2/3-1/3) Plumbed	100"	52"	56"	51"	48"	2-20"	40881	H
1000 (2/3-1/3)	102"	60"	58"	51"	48"	2-20"	***	B,C,D,E,F,G
1000 (2/3-1/3) Plumbed	102"	60"	58"	51"	48"	2-20"	***	H
1250 (2/3-1/3)	116"	55"	66"	57"	54"	2-20"	***	B,C,E,F,G
1250 (2/3-1/3) Plumbed	116"	55"	66"	57"	54"	2-20"	***	H
1500 (2/3-1/3)	133	55"	66"	57"	54"	2-20"	***	B,C,D,E,F,G
1500 (2/3-1/3) Plumbed	133"	55"	66"	57"	54"	2-20"	***	H