Snyder Industries 13800 Gallon HDPE Vertical Liquid Storage Tank with ASTM Certification

Eighty-six tons on the widest floor, in the middle wall

A water-rated wall is for water and nothing heavier; the chemical wall is what concentrated acid needs; a 1.5 wall is the middle, sized for brine, fertilizer solution and coagulant as delivered and every water application, with margin, and 3,100 pounds of resin is what that takes on the widest shell Snyder makes. D1998 is what the certification refers to, and it is met in the thickness of the wall; the HDPE tank wall thickness guide explains the sizing logic and why the headspace is where a wall ages, and the freeboard sizing guide works out the usable volume once thermal expansion is accounted for. The floor is the widest in the line, so the pad matters more than the height: 172,638 pounds on a 165 inch circle at the rating needs a full-contact engineered slab beneath the entire floor, per the concrete pad sizing guide, because a tank this wide spans any hollow in a gravel base and cracks there when full; the empty tank is strapped against wind. The tank sizing calculator tells you whether 13,800 gallons covers the draw, and the tank sizing guide covers days of supply.

Grades on the 165 x 184 inch tank, and the sizes beside it

The N45 is the certified 1.9 wall in this same shell, 250 pounds heavier, for ferric at strength and the heavy brines, and the N39 the certified 1.35 wall, 300 pounds lighter, for alum and the lighter solutions. The 5350000N39 holds 12,500 gallons on a 142 inch base 14 inches taller, and the 5370000N39 stands 15,000 gallons on a 143 inch base at 234 inches for a site with height and less floor.

Neighboring size a better fit? Every row links to its own page; freight to your ZIP is quoted on each, or call 866-418-1777.

Bulkheads and lid

• Access: 24 inch lid, 184 inches up, wide enough to enter for cleaning; filled by truck through a dip tube, vented outside on anything that fumes, and size the vent for a tanker's unload rate.
• Outlet: name the liquid when ordering so the bulkhead fitting matches it; flex at the bulkhead, an expansion joint after it, and the valve braced off the slab so the fitting carries nothing.
• Service limit: 120 F / 48 C.
• Listing: ASTM certification.

The white wall shows the level in daylight; fit a sender read at ground level so nobody climbs for a number, and a float switch for low level protects a pump. Mount the pump below the outlet so it primes by gravity, keep the lid closed against vapor loss, and keep the tank out of direct sun where the liquid is light-sensitive. If winters freeze, wrap or drain the outlet valve and the first pipe run; the body takes ice from the top down without harm.

The tanker unload

The driver's pump can deliver faster than the lid vent can breathe, so the vent is sized for the unload rate or the fill goes through a dedicated top bulkhead with its own vent line. Run the fill pipe to the floor so the liquid does not free-fall and foam. Somebody stands at the tank for the whole of the first delivery, watching the slab edge and the outlet fitting as the level rises, and every delivery after that goes in the log with a date and a strength.

Day-to-day duty

Coagulant, brine and fertilizer solution delivered two tankers at a time at plants and farms that need the certification on file and have floor to spare, well storage for a community system under a lower roof, and a fire reserve of the kind the fire-water reservoir design guide describes, where the low center of gravity counts. One liquid per tank, labeled.

From the plant to your site

At 165 inches across the 3030100N43 is oversize freight (NMFC 156600) on a flatbed at a lane rate, wide enough to need an escort on some routes, so the estimator's lane matters; the freight cost estimator prices it for your ZIP, and the listed price is before freight. A crane sets 3,100 pounds on the slab, and the slab is checked flat before the tank lands. Fill it to the lid once, hold it, check the outlet fitting, and keep the certification paperwork with the project file. Once it is full and holding, leave it alone for a day before the plumbing goes on; a settled tank is a quiet one.