The 300 Gallon Plastic Septic Pump Tank from Snyder Industries is a polyethylene tank built to hold and discharge effluent in a septic system, with a 300-gallon capacity. It arrives preplumbed, which removes a step of field staging when you set the pump chamber. At full water weight it runs about 2,502 lb, so plan your set crew, equipment, and bedding around a fully loaded tank rather than the bare shell.
Will it work for your septic pump setup?
This is a dedicated pump tank, not a primary treatment tank, so it belongs downstream as the dose or lift chamber where an effluent pump moves liquid to the drainfield or up to a higher elevation. The shell is polyethylene. This listing does not carry a specific-gravity rating, which is not a concern for a dose chamber handling effluent near water density, but flag it if you intend to store a denser fluid. The listing also does not include fittings, gaskets, or a pump, so budget your inlet and outlet grommets, discharge bulkhead, and float kit separately. Size your pump, floats, and discharge plumbing against the actual service and your local code before you set it. Use the Tank Sizing Calculator and the Tank Sizing Guide to match dose volume and reserve to your system, since the usable dose volume of a 300-gallon pump tank is less than nominal once floats and reserve are set, and dimensional detail is on the technical drawing on this page.
Approvals and the mistake to avoid
Septic approvals are jurisdiction-specific. A pump tank accepted in one county or province may need a different listing in the next, and a 300-gallon plastic dose tank is not interchangeable with a code-approved primary septic tank. Confirm the required approval with your local health department or inspector before purchase, and read our guide on Norwesco IAPMO and CSA B66 septic tank approvals for how IAPMO and CSA B66 listings and US plumbing codes differ across the border. The avoidable mistake is treating this pump tank as a general septic tank or skipping the local approval check.
Freight
This tank ships LTL freight, quoted live to your ZIP. Snyder produces it at several plants and fulfills from additional locations across the Southeast and Plains, and we ship from the one nearest you, including Chowchilla, CA, Marked Tree, AR, and Philippi, WV, which keeps the lane shorter and the freight lower. Get your number with the Freight Cost Estimator or call 866-418-1777, and we will quote the LTL rate to your delivery ZIP and confirm the closest shipping point.
