The Norwesco 1500 Gallon Septic Tank is a yellow polyethylene tank built for below-grade wastewater service, with a footprint of 55 inches wide by 135 inches long and a height of 70 inches. At 1,500 gallons of working capacity, it holds approximately 12,510 pounds of water-equivalent fill when full, so the excavation, bedding, and backfill all need to be planned around that loaded weight, not the empty shell. This is the right size for a single-family residence or a small commercial setup where 1,500 gallons of septic capacity is specified by your installer or local health department.
Will it work for your install
The tank measures 70 inches tall, 55 inches wide, and 135 inches long, so confirm your excavation length before delivery; this is a long, low-profile vessel and the 135-inch run is the dimension most people underestimate. For burial depth and inlet, outlet, and riser placement, match the manufacturer specifications and the technical drawing on this page against your site plan, and confirm the details with your installer before you break ground. If you are still deciding between sizes for your daily flow or number of bedrooms, run the numbers through our Tank Sizing Calculator or read the Tank Sizing Guide before you commit to an excavation.
Approvals and the mistake to avoid
The most common septic-tank mistake is buying before you confirm your local approval. Septic tank acceptance is governed at the state, provincial, and county level, and a tank approved in one jurisdiction is not automatically accepted next door. The rules differ sharply between US plumbing codes and Canadian requirements such as IAPMO and CSA B66. Before you order, read Norwesco IAPMO and CSA B66 Septic Tank Approvals and verify with your local authority that this 1500 gallon Norwesco septic tank is accepted for your address. Searching for the tank is the easy part; getting the right approval on file is what keeps the install on schedule.
Freight and ordering
This 1500 gallon septic tank ships LTL from Hanford, CA, and freight is quoted live to your ZIP code. Because this is a large, long tank, freight is a real line item worth pricing before you order: get an exact number with our Freight Cost Estimator or call us at 866-418-1777 and we will work the route for you. Have your delivery ZIP and any access limitations ready, and we will help you line up the tank, the timing, and the approval paperwork in one pass.
