The Snyder Industries 10000 Gallon Sodium Hypochlorite (UV) Double Wall Tank is a containment-grade double wall tank built for aggressive chemical service, molded in Opaque White HDLPE #880059 and rated to a 1.9 specific gravity. It stands 226 inches tall on a 142 x 142 inch footprint, giving you a self-contained primary-and-secondary system in a single molded assembly instead of a separate tank-and-basin arrangement. Before you commit, run your numbers against the Tank Sizing Calculator and the Tank Sizing Guide so the capacity, pad, and headroom all line up.
Will it hold your product
The 1.9 specific-gravity rating is the number that matters here. This double wall tank is built to carry contents substantially heavier than water, which is why it suits dense chemistries like sodium hypochlorite rather than plain storage. Filled with water alone the load is about 83,400 lb; at the full 1.9 rating the tank is engineered to a maximum rated contents weight of roughly 158,460 lb. Size your foundation and anchoring around the weight of your actual fluid, not a water baseline. One more sizing reality on this class of tank: the 10,000 gallon nameplate is not all working volume. A double-wall unit needs freeboard for thermal expansion, so the fill line sits below the rated capacity and you should batch to your usable volume, not the nameplate. The freeboard sizing walkthrough per ASTM D1998 shows how to calculate it, and the concrete pad sizing guide covers the ACI 360R-10 framework for the load.
Fittings, venting, and access
The tank comes configured with a flange fitting, an 18-inch PE threaded and vented opening, and a manway with 15-inch access for inspection and cleaning. The vent is not optional plumbing on this service: sodium hypochlorite off-gasses, and the vented fitting relieves the chlorine gas the product generates so pressure never builds behind the wall. Exact fitting locations and elevations are called out on the technical drawing on this page, so verify your plumbing tie-ins and vent routing against that drawing before installation. As a UV-stabilized double wall design, the outer wall provides built-in secondary containment, which is why engineers reach for this configuration on regulated sites. For the compliance context, see the walkthrough on SPCC 40 CFR 112 compliance.
The mistake to avoid
Do not spec down on specific gravity, and do not assume the gasket follows the tank. A tank rated below your fluid density is overstressed from day one, and on a double wall unit this size that risk is not worth taking. Just as important, the polyethylene body and the fitting elastomers and gaskets are two separate compatibility questions: confirm your gasket and fitting materials are rated for sodium hypochlorite at your concentration and temperature against the manufacturer's chemical-resistance chart before startup. Then confirm the fit with the Sizing Calculator so nothing is a surprise on delivery day.
Before it ships, confirm two siting details this 18-foot-plus vessel demands: overhead clearance to set a 226-inch tank and access to crane it onto a 142 x 142 inch pad. It ships LTL freight from the Snyder plant in Lincoln, NE, quoted live to your ZIP. Get a number with the Freight Cost Estimator or call 866-418-1777 and we will quote it with you. Listed before freight.
