






Osborne Tank and Supply - In Business for Over 50 Years - 888-967-TANK(8265)











Septic Tanks
40 Years of tested field experience have demonstrated a cost effective and reliable alternative to the heavy concrete tanks. I.A.P.M.O. (UPC) Listings are carried on all 750, 1000, 1200, and 1500 gallon septic tanks. Larger tanks up to 5000 gallons are available and include numerous county approvals. Our septic tanks are easily transported in the bed of a pickup truck for ease and versatility on the job site. Each tank also carries a 500 lb. per square foot structural load rating as required by I.A.P.M.O.
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This is ONE TOUGH TANK!
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NORWESCO Septic Tanks
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 are backed by a full three-year warranty and have been certified by state and local health departments from coast to coast. Where applicable, NORWESCO septic tanks have been certified by both IAPMO and CSA.
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 1000, 1250 and 1500 gallon sizes are available in two compartment configurations.
Pre-Plumbing: All NORWESCO septic tanks that are 1000 working gallons and above are "pre-plumbed" with PVC inlet and outlet assemblies. Assemblies and their components are made of either SDR35 or SCH40 PVC depending on state or local code requirements. All assemblies are sized according to code requirements as well. Finally, an EPDM gasket is placed between the "T" assembly and the tank wall to assure watertightness. NORWESCO septic tanks will arrive to you ready for installation.
Watertight Dome Lids: All septic tanks manufactured at all facilities, are equipped with a watertight domed lid. This domed lid is significantly stronger than previous lids we have offered. When leaving our factory, the lid(s) will be attached to the tank with stainless steel screws and come standard with a foamed, polyethylene gasket between the lid and the tank. This gasket provides a watertight seal at the lid area.
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