Snyder Industries 3500 Gallon Sodium Hypochlorite (UV) Captor Double Wall Tank

The opaque white sheet against its shellmates

Three things on this sheet are different from the tanks that share its shell, and all three point the same way. It is the only one in the group whose colour field reads opaque white rather than natural white or black. Its material field reads high density linear polyethylene where the cross-linked listings beside it read otherwise. And its service limit is 120 F / 48 C where the cross-linked shellmates are listed at a higher figure. Everything else is identical: 3,500 gallons, 102 by 102 by 158 inches, 2,500 pounds empty, and the same specific gravity rating of 1.9 carrying 55,461 pounds of maximum contents against 29,190 pounds of water. So the honest reason to order this part number rather than 5600000N42 or 5600000N30 is that this is the listing Snyder names for the product you are storing, in the colour the maker assigns to it, at the limit its own sheet publishes. That is the whole of what is written down, and reading anything further out of a suffix or a colour is how the wrong vessel ends up on a pad. The opaque white shell is worth a sentence on its own, because colour is the one difference with a daily operational consequence. Opaque white is not a see-through wall, but on a lit pad it reads very differently from black under sun load, and it is the colour the maker has put against this name. If light on the contents is a consideration for you, say so at order time and let us confirm the listing rather than choosing off a colour word. Then the site, which is the same discipline for every tank in this family. Thirteen feet of vessel on an eight and a half foot square plan wants a flat, continuous, level surface under the whole footprint, never rails and never a shim at one corner, because 29,190 pounds of water sits above it; the concrete pad sizing guide for above-ground polyethylene tanks sets out that framework and where it ends. Two questions belong before the order. The volume you can actually use is not the nameplate figure once thermal expansion, chemistry and density are accounted for, which the Captor double wall freeboard sizing guide works through properly; and your delivery quantity and turnover want checking in the tank sizing calculator with the freeboard discipline from the tank sizing guide. Where the reason for buying containment at all is regulatory, the Captor double wall compliance walkthrough goes through the requirements in order instead of asserting that any product satisfies them.

One 158 inch Captor shell under several names

Four of these six are the same 158 inch Captor shell, and the sheet gives three of them at 2,500 pounds and one at 2,100. This tank is one of the heavier listings. The names differ, the material fields differ, the service limits differ, and the sheet explains none of that, so this page prints the rows and leaves the interpretation where it belongs: with the chemistry you describe to us. Order the part number Snyder names for your product, or tell us the product and let us confirm it. The two rows that change the installation rather than the name are the last two, and the family scales in one direction only. 5590000N30 holds 3,000 gallons on the same 102 inch square at 142 inches and 1,900 pounds; 5610000N30 holds 4,000 on the same square at 178 inches and 3,200 pounds. The floor never changes. Sixteen inches of height either way is the entire physical difference between three thousand gallons and thirty-five hundred, and twenty inches more takes you to four thousand. That makes the choice a clear-height calculation and a delivery-frequency calculation, not a floor plan exercise: work out how much room is left above the manway once a platform and a fill line are in place, then work out how often you want a truck on site, and buy the largest row that fits both answers.

Which wall for your chemical? Call 866-418-1777 with the name and the concentration, or send a quote request and we will pick the row.

Venting a tank that gasses in the headspace

• The vent: the 18 inch manway is listed as threaded and vented, and on any product that works its headspace the vent is the first fitting to design and the first to inspect. Keep the path clear, look at it every time the manway is opened, and never blank or restrict it to hold an odour, because the wall is what pays for a blocked vent on a hard pump-down or a fast delivery.
• The opening: 18 inches is the only opening this sheet publishes, so it is the fill route, the inspection route and the cleaning route together. That is workable, but it means every arrangement you want on top has to be planned to share one hole before the tank is set.
• Access: the manway is at 158 inches. That is a fixed platform, a ladder and a fall protection arrangement specified with the installation, and a fill coupling brought down to working level wherever the delivery allows it.
• The outlet: the outlet field reads "1 Manway / Lid", which names an opening and not a pipe size; the inlet field is empty. No outlet dimension, thread, flange or valve is claimed on this page. Tell us the product, its strength and the line size and we will confirm what this part number carries.
• Gaskets and wetted parts: the maker names this listing for a specific product, and the seal, any fitting we add, the valve seat and the pump materials are all chosen against that product rather than against a default. This is the part of a contained tank the second wall does nothing for.
• The space between the walls: no monitoring port, gauge or alarm is published on this sheet, so that arrangement is specified separately and inspected on a written schedule.
• Limits: 120 F / 48 C, a specific gravity rating of 1.9, and a 3 Year Warranty.

Say what is going in it and how warm it runs when you order, and every wetted part on the tank gets chosen once, correctly, instead of twice.

Disinfection storage where the floor must stay clean

A 3,500 gallon contained vessel named for this duty goes where bulk deliveries meet a floor that has to stay clean: municipal water and wastewater disinfection, package and rural water systems, large pool and aquatics plants, food, beverage and dairy sanitation, laundry and industrial wash operations, and industrial process lines that dose steadily between deliveries. The size is the point at which a site stops handling totes with a forklift and starts taking a hose delivery, and the second wall is what makes taking that delivery indoors, or on a surface that drains somewhere, a planned decision rather than a risk somebody absorbs. Two habits belong with this tank from day one. Keep the headspace and the vent on the maintenance round rather than treating them as fit-and-forget, and inspect the space between the walls on a fixed schedule with the date written down, because the only thing containment gives you over a single wall is the evidence that nothing has left the first one.

Twenty-five hundred pounds, Lincoln to your gate

The plant on this sheet is Lincoln, Nebraska, and two ship-from states are listed, Nebraska and West Virginia; both are printed as given. Freight is LTL at class 250 with no NMFC number, and the load is 102 by 102 by 158 inches at 2,500 pounds. Price the lane to your ZIP with the freight cost estimator; the listed price is before freight. Thirteen feet of tank on an eight and a half foot square is a dimensional load in both directions, so measure the route to the final position before the truck is booked and confirm the offloading equipment has the reach as well as the rating. Take it under the base and never by the manway. Set it on the finished, cured, level surface where it will live, check it plumb in two directions while it is empty, and only then connect anything. Fill it with clean water, hold that 29,190 pound load, and read the manway seal, the base line and the pad under it. Drain, dry, open the space between the walls and record the date on the shell. Before the working product ever arrives, agree in writing who watches a delivery and what the stop level is, because on a tank named for a specific chemistry the receiving procedure is as much a part of the installation as the pad is. Walk the base after the first hard rain; a pad that shifts shows it at the edge first.