The Snyder Industries 500 Gallon Snyder Septic Pump Tank is a 500-gallon grey polyethylene tank built for the pump-chamber stage of a septic system, where effluent is collected and then pumped on to a drain field, mound, or downstream treatment. It measures 60 inches wide by 60 inches long by 63 inches tall, giving it a square 60.0 x 60.0 inch footprint that drops cleanly into a standard excavation. Filled with water it carries roughly 4,170 pounds, so size your set, bedding, and backfill around the loaded tank rather than the empty shell.
Quick specs for sizing the excavation
- Capacity: 500 gallons (pump chamber, septic effluent service)
- Dimensions: 60 in W x 60 in L x 63 in H
- Footprint: 60.0 x 60.0 in square base
- Full water working weight: ~4,170 lb
- Material: grey polyethylene
- Specific-gravity rating: No (standard effluent / water-weight service)
Will it work for your install?
This is a dedicated pump tank, not a primary treatment or holding vessel, so it sits downstream and houses the effluent pump, floats, and discharge plumbing for a 500-gallon working volume. The 63-inch height and square 60-inch base keep burial depth and excavation predictable. The tank ships in grey polyethylene; the specific-gravity rating is listed as "No," which means it is spec'd for standard septic effluent and water-weight service rather than heavy or high-density liquids. No fitting, port, or float specifications are published for this unit, so confirm the floats, pump, inlet, and discharge fittings you intend to run against your own system design before you order. If you are still confirming volume for your daily flow and dosing cycle, the Tank Sizing Calculator and Tank Sizing Guide will help you size the pump chamber correctly, and the technical drawing on this page shows the tank profile.
Approvals and the cross-border question
Septic approvals vary by state and, for Canadian installs, by national standard. Before you commit, check whether your jurisdiction requires a specific listing for the pump tank as well as the primary tank. Our guide on Norwesco IAPMO and CSA B66 Septic Tank Approvals walks through how US plumbing-code approvals and Canadian CSA B66 scope differ, which matters if you are installing near or across the border. Buyers cross-shopping a 500 gallon septic pump tank against other brands can compare build and support in the 2026 manufacturer buyer guide and the focused Norwesco vs Snyder Industries comparison.
The mistake to avoid
The common error on a pump tank is treating it like a sealed holding or potable vessel. This Snyder 500-gallon unit is configured for effluent service; do not assume it carries potable or food-grade listing, and do not load it with liquids heavier than standard effluent given the "No" specific-gravity rating. The second mistake is sizing excavation and rigging around the empty shell instead of the ~4,170-pound full water working weight. Match the pump tank to your primary septic tank and your designed dose volume, and confirm inlet and discharge locations against your system design before you dig.
This tank ships LTL freight, palletized and quoted live to your ZIP from whichever of our Snyder shipping plants is nearest you - Marked Tree, AR; Chowchilla, CA; or Philippi, WV. Get a real number with the Freight Cost Estimator, or call 866-418-1777 to confirm fit, approvals, and the best shipping origin for your project.
