Snyder Industries 3900 Gallon ASTM Black Heavy Duty Vertical Storage Tank

Nebraska freight, and the wall that rides the same lane

This tank comes off the line at Lincoln, Nebraska, which puts it in the middle of the country and makes the lane cheap in every direction that matters for agriculture and municipal water: the Plains, the upper Midwest and the river states are all a short haul, and the sheet lists it at class 300 rather than the 400 a wider, lower shell of the same volume carries. That is the quiet argument for a 90 inch column. The freight bill does not care that the wall inside is the heavy one; at 1,200 pounds empty this tank rides the same lane and the same class as the lighter wall in the same molding, so the extra wall is bought for the liquid, not paid for twice at the scale house. What the wall does cost is on the ground. Full at the rating this tank stands 61,799 pounds on a 90 inch circle, a heavier load per square foot than any wide tank in this size band, and every pound of it bears on the slab because a molded floor has no ring beam to spread it. Engineer the pad to the concrete pad sizing guide, level and in full contact, sized for 61,799 pounds and not for the 32,526 pound water figure, inside a berm at 110 percent of the tank where the liquid is regulated. Above the pad, 163 inches of empty black tank on a seven and a half foot base is a sail in the window between delivery and first fill, so the tiedown lugs go to slab anchors or to structure before the crane leaves, and the bands get checked after the first windy week and again after the first full summer, because black polyethylene grows in the sun and the strap that was tight in spring is slack in August. Run 3,900 gallons against your draw in the tank sizing calculator, and take the reserve and the thermal freeboard from the tank sizing guide.

Four 3,900s in the 90 by 163 inch shell

Four part numbers share this molding and the split is visible in the empty weights the sheet gives: this tank and the N48 at 1,200 pounds, the N40 and the N46 at 900. Take this one when the liquid is meaningfully heavier than water and the black wall matters, because the 1.9 rating and the 1,200 pounds of wall behind it are exactly what the 900 pound tanks do not have; the N40 and the N46 are each rated as their own sheets say and are the honest buy for water or a light solution. Change the shape and you change the site. The 8190000C26 holds 3,650 gallons on a 102 inch base at 126 inches, three feet shorter and a foot wider, for a building that will not take thirteen and a half feet of tank; the 7421100N40 spreads 4,000 gallons across a 120 inch base only 104 inches tall for a low roof and a wide slab. This tank is the one when the floor is the scarce thing.

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.

Thirteen feet seven inches to the manway

• Access: 18 inch threaded, vented manway on the top head, 163 inches up. Thirteen feet seven inches is a fixed ladder and a platform with a rail, not a leaned extension ladder, and that access is designed with the tank rather than added the first time somebody has to look inside.
• Outlet: the sheet lists the outlet as 12. That is the field as published, it is not a pipe size, and we do not print it as one; name the liquid and the pipe you are tying into at order and the fitting, gasket and bolting are specified then.
• Structure: four tiedown lugs and eight lifting lugs molded in, plus ladder lugs on the wall, so both the lift and the anchoring have their own attachment points and neither needs the manway.
• Service limit: 120 F / 48 C.

Everything a person does on top of this tank happens at 163 inches, so plan it from the ground up. The platform wants room above the manway for the lid to swing, the vent to rise and the fill line to land, which means the clearance to measure is not 163 inches but 163 inches plus that work. Fill down a dip tube to the floor rather than into open air, because thirteen and a half feet of free fall aerates a load and coats the headspace wall. Run the vent outdoors on anything that fumes and size it to the delivery pump, not to the fitting. Underneath, the same column of liquid is the best suction head in this group: a transfer pump set below the outlet runs flooded to the last few inches, and a low level float stops it before it pulls air. The head also sits on the base fitting, the first valve and the first joint all day, so the connector to hard pipe is flexible, the valve is carried on its own support off the pad, and one spare gasket lives on the shelf. Keep the manway closed between deliveries, name the one liquid on the wall in letters readable from the gate, and put a light on the band of wall above the liquid line every time the lid comes off, because on a tank this tall that band is the part nobody sees from the ground.

Heavy chemistry where the floor is short and the roof is not

A 1.9 wall at 3,900 gallons goes where the liquid is dense and the footprint is fought over: a water or wastewater plant on a concentrated coagulant in a chemical room that is already full, a co-op holding a heavy fertilizer blend through a season, a mineral or food processor on a concentrated process liquid, a plant that bought a full load on price and needs somewhere to put 61,799 pounds of it. Paying for a 1.9 wall to hold water is paying for wall that will never be loaded, and a fire reserve in particular is a system design problem with its own sizing and freeze discipline rather than a tank purchase, which the fire-water reservoir design guide sets out plainly.

The Lincoln lane at class 300, and a 1,200 pound lift

The 5190000N51 is molded at Lincoln, Nebraska and moves as freight at class 300 as the sheet lists it. At 163 inches long on the deck and 90 inches across it rides inside the usual envelope rather than as a wide load, which is the other reason a column costs less to move than a pancake of the same volume; the freight cost estimator prices the lane to your ZIP, and the listed price is before freight. Plan the set for 1,200 pounds with straps to the lifting lugs or under the body, never a hook in the manway, and land it on the anchors that were set with the pad, tie-downs tightened the same day. Water test before product, hold it a shift, and read the base, the pad edge and the fitting that was specified at order. Then leave the tank alone for a day before the pipe goes on, because a column that has not finished settling is a pipe run that gets cut twice. Write the fill date on the manway with a paint marker; it answers the first question anyone asks about a tank.