Snyder Industries 400 Gallon Plastic Vertical Chemical Storage Tank in White

The tall day tank

Four hundred gallons is a week or two of a treatment chemical drawn from a bulk tank or totes, and the 40 by 80 inch shape puts that volume on a footprint smaller than a pallet, with 80 inches of column to keep the dosing pump's suction flooded. The list below is the resin's rated chemistry; check the liquid at its concentration in the chemical compatibility database, because weight rating and chemical resistance are separate properties. Size the tank to the feed rate and the delivery interval with the tank sizing calculator, and carry the reserve the tank sizing guide recommends. Strap it to a wall; a 40 inch base under 80 inches of dense liquid has a high center of gravity.

Snyder's 360 to 440 gallon chemical tanks

The 45 inch tanks are the same 400 gallons 16 inches shorter on a base 5 inches wider: the N42 in cross-linked polyethylene for oxidizers, and the C26 with a heavy wall and the fitting installed. The 53 inch tanks are lower still, 59 and 69 inches tall, for the room where height is the problem. The 32306 is the one for the narrow corner.

Comparing across brands too? Call 866-418-1777; we carry Norwesco, Snyder, Chem-Tainer, Enduraplas and Bushman and will say which one fits, or price the freight first.

Openings, sampling and labels

• Outlet: 2 inch polypropylene female NPT bulkhead fitting at the base; a PVC or CPVC adapter, a flexible transition, and a valve supported off the floor.
• Access: 20 inch threaded, vented manway, half the diameter of the tank; a fill hose, a float switch and a sender fit at once.
• Service limit: 120 F / 48 C.

Three practices make a small chemical tank a safe one. Choose the level sender for the chemical with the level gauge selection guide. Draw samples that represent the tank and not its stratified top, per the bulk tank chemical sampling protocol. And label it so the fire inspector and the workplace inspector read the same thing, per the tank label and signage compliance guide. A 40 inch tank fits a standard spill pallet, and the Snyder Captor 110 percent containment comparison covers when a double wall tank is the cleaner answer.

What it holds in practice

Hypochlorite, caustic and coagulant storage at small water and wastewater systems, acid and inhibitor feed at cooling towers, brine for softeners, polymer make-down on a skid, and reagent storage on a pilot plant. One chemical per tank, labeled; manway closed against vapor loss, vent routed outside on anything that fumes, and the tank out of direct sun where the chemical is light-sensitive.

Getting it to the pad

The 32306 ships palletized as LTL freight (NMFC 156600-02) at a class rate; the freight cost estimator shows it for your ZIP, and the listed price is before freight. Two people carry 115 pounds through the door. Strap it, water-fill to the manway and hold it, then drain and dry before the chemical connection is made; mark the vent and the outlet on the shell so nobody caps the wrong one. Once it is full and holding, leave it alone for a day before the plumbing goes on; a settled tank is a quiet one.

What this tank is listed to hold

Each line is a liquid the resin is rated for, at the concentration shown, with the fitting and gasket to order. Follow the link for the full rating, or search the chemical compatibility database before ordering.

• sodium hypochlorite (under 16.5%, PVC fittings, Viton gaskets)
• sulfuric acid (98%, CPVC fittings, Viton gaskets)
• hydrochloric acid (37%, PVC, Viton)
• phosphoric acid (85%, PVC, Viton)
• hydrogen peroxide (50%, PVC, Viton)
• ferric chloride (50%, PVC, EPDM)
• aluminum sulfate (50%, PVC, EPDM)
• calcium chloride (40%, PVC, EPDM)
• sodium carbonate (30%, PVC, EPDM)
• potassium hydroxide (saturated, PVC, EPDM)
• acetic acid (60%, PP/PVC, EPDM), and
• DEF (32.5%, 316SS fittings, EPDM) along with
• urea solution (50%) and
• ethylene glycol (100%). More aggressive oxidizers such as
• peracetic acid (30%) call for 316SS fittings and Aflas gaskets, while ozonated water (up to 10 PPM) runs on PVC and EPDM. Other matched chemistries includ
• ferric sulfate
• ferrous sulfate
• magnesium chloride
• hydrofluoric acid (48%, Viton)
• hydrofluosilicic acid (26%)
• polyaluminum chloride
• potassium carbonate (50%)
• propylene glycol
• sodium bisulfate
• sodium bisulfite
• sodium thiosulfate and
• zinc orthophosphate . The mistake to avoid: matching only the tank resin and ignoring the fitting and gasket column. A tank wall can be fully compatible while