Norwesco 3000 Gallon Black Heavy Duty Vertical Storage Tank

The rows this sheet lists beside 42380B

Read the shell column first. Four rows here print 3000 gallons and they do it in three different envelopes: a 102 inch plan at 93 inches tall, a 91 inch plan at 119 inches, and a 95 inch plan at 109 inches. The volume is constant and the demand on your site is not, which is the only reason this many records exist at one capacity. Ground area or headroom: pick the one you can afford to spend.

This record and 45260 print an identical shell, 102 by 102 by 93 inches, and different part numbers, different weight cells and different store names. Both figures are the sheet's own and neither page in this catalogue will tell you what produced the difference, because the sheet does not say. What can be said about 42380B without leaving the page is what its own columns carry: a grade line of 1.9, a maximum contents figure of 47538 lb printed against that grade line, and a five year warranty cell. Those three readings are this record's identity, and they are the reason to order by part number rather than by the phrase "three thousand gallon".

The N-44668 row publishes a height of 119 inches and nothing else. The empty cells stay empty, because an unpublished figure is not a figure of zero and we are not in the business of filling in blanks.

Height or floor the limit? The table has both shapes; freight to your ZIP is quoted on each row, or call 866-418-1777 with the site.

Port, lid, and the two limit lines

Take the top row seriously first, because a 16 inch threaded vented manway is three pieces of equipment sharing one hole. It is the fill point on a record that publishes no inlet. It is the access for a light and a hose, and 16 inches is generous enough that washing the inside is an actual possibility rather than a theoretical one. And it is the vent, which is the part that keeps the shell out of trouble.

On the vent, the arithmetic is unforgiving and simple: every gallon that leaves through the bottom has to be replaced by air coming in through the top. With 25020 lb of water in the tank and a 2 inch port at the bottom, a vent obstructed by a nest, a rag or a strip of tape means the shell itself makes up the shortfall. Inspect it whenever the lid is off and never seal the top to cure a leak somewhere else.

The second row is where the plumbing decisions start. Size the run from the 2 inch bulkhead outward and do not step down at the first coupling. Thread into it square, once, and hang the weight of the pipework off a stand outside the tank; the bulkhead is a gasketed penetration whose job is sealing, and any job you add to that is a job it will eventually fail at.

The fourth row deserves its own sentence because it is the one buyers skip. This record prints a grade line of 1.9 with a maximum contents figure of 47538 lb against it, and that is the published contents limit for 42380B. It is not a figure to be adjusted, scaled or reasoned around for a different liquid. If what you intend to store does not sit comfortably inside that printed figure, the conversation to have is with the manufacturer against this exact part number, before the tank is bought.

The install specific: level the pad under the full 102 inch circle to a standard you can prove with a straightedge, not to a standard you can defend by eye. On a wide, relatively short shell the outlet is fixed at one point on the wall, and any tilt away from that point leaves a heel of liquid the outlet cannot reach for the life of the tank.

Fairfield, Texas, and only Fairfield

One plant is named against 42380B, at Fairfield in east Texas, and Texas is the only state in the ships-from cell. Single origin, single lane, and that is the first thing to understand about buying this record. Texas, the Gulf coast, Oklahoma, Arkansas and Louisiana are all short hauls from Fairfield. Anywhere in the far West or the Northeast is not, and the quote for that lane wants to be in your hand before you decide, because on a tank this size the freight is not a rounding error on the purchase.

Single origin has a second consequence that catches people out: one plant means one production schedule and one yard's stock. A date given against this part number is a date against Fairfield, so ask what is actually standing in that yard before you book a crew or a machine around a delivery week.

The freight lines read class 400 with the mode given as LTL. Class 400 describes a big, light object and the bill follows that description: mileage and handling drive it, the 484 lb on the weight line does not. The most useful thing you can do to control the number is to make the unload easy, because a straight lift off a trailer at a dock and a careful manoeuvre down a residential drive are not the same shipment to a carrier.

The pad comes next. A 102 inch circle carrying 25020 lb of water needs continuous, flat support out past the footprint, on ground that will not settle under one edge. A wide shell tips before it dents, so the failure you are designing against is a soft edge rather than a point load. Our framework for sizing a pad under an above-ground polyethylene tank is where to work that out properly.

The honest limitation: the structural column on this record is empty. There is no band, cradle, saddle, hold-down or anchoring detail published anywhere on 42380B, so if this tank has to be restrained against wind or fixed to a structure, that design is yours, done from your own numbers, with nothing from this sheet to lean on.

A grade line of 1.9 and what it governs

Most buying decisions in this family are made on shape, and shape matters here too: 102 inches across and 93 inches tall is a wide, stable, low-slung 3000 gallons that clears an ordinary eave and does not need a platform to service. But the column that should actually drive the decision on this record is the grade line, because 42380B prints 1.9 and a maximum contents figure of 47538 lb.

That figure is what governs whether a given liquid belongs in this tank, and it is a harder constraint than the volume is. A tank is only full of gallons in the geometric sense; what it is really holding is pounds, and the pounds are what the shell and the fittings have to carry. Work out the weight of what you actually intend to store, compare it against the printed figure, and if the answer is close rather than comfortable, take it up with the manufacturer against this part number rather than deciding for yourself.

Size the volume itself with the same discipline. The tank sizing calculator turns your real draw into a number and the tank sizing guide sets out the assumptions behind it, which is where sizing usually goes astray.

For the duties this size commonly serves, three pieces are worth reading. Roof-fed storage lives or dies on what happens in the first minute of a storm, and first flush diverter sizing covers it. Standby volume at a property away from a hydrant has its own sizing discipline and its own freeze problem, both in the rural and remote reservoir article. And a tank that is one stage in a reuse chain is designed by the sequence it sits in, which the quality-banded storage train piece works through.

One origin, 484 pounds, and a wide box

What moves is the tank itself: 102 by 102 by 93 inches, 484 lb, class 400, LTL, out of Fairfield. That is eight and a half feet of width on a trailer, so the questions worth answering before you order are about geometry at your end rather than about the tank. Can a truck get to the spot, can a forklift reach under it, and is there a straight run from the trailer to the pad. Price the lane honestly in the freight cost estimator against the ZIP it is actually going to; the listed price is before freight.

Do the receiving check with a camera, before the driver leaves, and be specific about what you photograph. Two shots: one square on the 2 inch bulkhead fitting with the packing list held in the frame, and one down into the 16 inch manway with the closure off. Those are the two pieces of hardware on this tank that are worth money to replace and are easiest to argue about later, and a timestamped photograph taken beside the trailer ends the argument before it starts. It takes a minute.

After the photographs, walk the shell once at waist height looking along the surface rather than at it, sign for what you actually inspected, and get the tank onto its prepared circle the same day. Then file the two photographs with the invoice. A tank bought once and kept for twenty years is a tank whose paperwork nobody can find in year three, and the photographs are the part you will wish you had. The vent screen is the cheapest part on the tank and the one that saves it; look at it every time the manway opens.