Snyder Industries 535 Gallon Plastic Horizontal Leg Tank

78 inches long on a 47 inch width: choose the deck first

Six and a half feet of tank decides where it can go before anything else does. This body is 78 inches long, 47 inches wide and 52 inches tall, and full it carries 4,462 pounds of water, or up to 8,478 pounds of contents at the rating, which puts it firmly in the category of tanks that live on rated structure rather than on whatever was handy. The honest homes for it: a flat-deck or gooseneck trailer with a deck rated for the load and anchor points through the tank's own feet; a fabricated skid that a forklift or a loader lifts and sets; a flatbed truck; or a level slab where it stands as a fixed yard supply. Fifty-two inches of height is the one dimension that helps, because it is an inch lower than the other big tank in this family and that inch decides whether a cover, a rack or a doorway clears. Forty-seven inches of width is close to four feet, so measure between the rails or the fenders before you order. Under it, the requirement is a flat, continuous bearing surface over the whole footprint: the moulded feet carry through their full flat area onto whatever they rest on, so one cupped deck board, one raised lip or one hollow in a slab becomes the bearing point for the entire load, and at this weight that point does not forgive. Then plan the restraint, because a body this long gives the liquid a long run: 535 gallons surging six and a half feet fore and aft under a hard stop is a load measured in thousands of pounds, worst when the tank is part-full, and it belongs in rated anchors through the legs in both directions rather than in ratchet straps over the top. What a leg or applicator tank has to satisfy once it travels, and what an agricultural exemption covers, is in the applicator and leg tank classification guide, and the portable utility case is worked through in the loaf-style portable utility tank guide. Before committing to a mount this substantial, run 535 gallons against your real draw in the tank sizing calculator and take the reserve and the freeboard from the tank sizing guide.

The other 124 pound tank, and why the lid decides

This sheet lists one sibling and it is almost the same tank, so the comparison is worth making carefully. Both are listed at 124 pounds empty. They differ by ten gallons, by three inches of length, by an inch of width and by an inch of height, and the sheet gives all of those figures without explaining any of them. On the rectangle, take this one when the deck is long and the height is tight, since it is the longer and the lower of the two, and take the 525 when the deck is short and the rails are wide. On access, take this one full stop. Snyder lists this tank's lid as 18 inches where its sibling's is smaller, and an 18 inch opening changes what an owner can actually do with a tank: a person can get an arm and a brush inside, look at the whole floor with a light, pull a sediment layer out, or change from one product to another and prove the tank is clean first. On the small-lidded tanks in this family that work is a guess. Note what the sheet does and does not say here: it gives the lid as a bare size, without the threaded vented wording that the other leg tanks in this family carry, so this page calls it an 18 inch lid and asserts nothing about how it seals or vents. Ask us and we will confirm the closure against Snyder's current documentation before you order a gasket or a vent.

Torn between two rows? Call 866-418-1777 with the liquid and the ceiling height, or ask for a quote on both and compare the freight.

An 18 inch opening over a 2 inch outlet on one body

• Outlet: a 2 inch outlet, as the sheet lists it, at the low end of the body above the legs. On 535 gallons that is the right size rather than a generous one: it feeds a transfer pump fast enough to empty the tank in a working span, it will run a spray boom without starving it, and it gravity-drains into a sump or a smaller vessel at a useful rate instead of a trickle. Everything downstream should be sized to match it, because a 2 inch fitting choked by a smaller valve or hose is just a smaller fitting with extra parts.
• The pump: 52 inches of body gives better than four feet of standing liquid over the fitting, which is real suction head as long as the pump sits below the outlet on its own base with a short run falling into the suction port. Raise the pump to deck level and the installation loses prime on the tail of every draw.
• Valve and first joint: a shut-off at the outlet on its own support off the deck, and a flexible connector ahead of any rigid pipe. With 4,462 pounds of liquid running along a 78 inch body, the loads that arrive at that fitting on a hard stop are not theoretical.
• No inlet on this sheet, so none is claimed. Filling is through the lid, and this is the one tank in the family where that is genuinely easy: an 18 inch opening takes a fill hose, a sight of the level and a hand, all at once.
• Access and what it is worth: the 18 inch lid is the specification to buy this tank for. Cleaning, inspection, sediment removal and product changes all become real jobs rather than guesswork. Keep it closed in transit and keep it clear; a large lid is a large thing to catch on a branch or a gate, and it is a large thing to leave loose.
• Service limit: 120 F / 48 C, with a 3 year warranty as the sheet gives it.

Name the liquid at order and we will match the fitting, the gasket and the valve to it against Snyder's current documentation. The access this tank gives matters most on the liquids that need it. On a blended fertilizer solution, the risk is stratification: a wide, shallow horizontal body has plenty of surface and little height to drive mixing, and a blend that has separated will run a spreader off spec across serious acreage before anybody checks. The fertilizer blend stratification guide sets out the physics and the field verification, and an 18 inch lid is what lets you actually perform those checks instead of reading about them. In freezing weather, drain the valve, the outlet and the hose and leave the body to ice on the surface.

Anything that has to be cleaned out: blends, slurries and seasonal changes

Buy this tank for the liquids and the operations that put a person inside the opening. A custom blending or mix-station tank that changes product between jobs and has to be proved clean first. A nurse or tender tank on a rated trailer whose owner rinses it out at the end of every run. A yard tank filled by bulk delivery and drawn down through a season, where a sediment layer builds on a broad floor and has to come out. Bulk water hauled to stock, crews or sites, where the tank also has to be sanitised between uses. Wash-down and dust control water on a construction spread across a long season. De-icing brine on a contractor rig, where salt builds up and the tank is emptied and inspected in spring. Fluid feed and starter fertilizer to a planter, where getting the last of last year's product out matters. What all of those have in common is that the tank is opened, entered with an arm and a brush, and closed again, on purpose, regularly, and that is what an 18 inch lid over 535 gallons is for. Two limits stated plainly. There is no secondary containment on this tank: where the rules require the liquid to be contained, this is not the product. And the 120 F / 48 C limit on this sheet applies to the liquid and to a full tank sitting in the sun, which at this volume takes a long time to shed heat once it has it.

Compatibility list

Liquids the maker rates this resin for, with concentration limits and the wetted fitting and gasket to specify. Confirm your own concentration and temperature on the chemical page or in the chemical compatibility database before ordering.

• Acetic Acid 60% - PP/PVC fittings, EPDM gaskets
• Aluminum Sulfate 50% - PVC fittings, EPDM gaskets
• Calcium Chloride 40% - PVC fittings, EPDM gaskets
• DEF 32.5% - 316SS fittings, EPDM gaskets
• Ethylene Glycol 100% - PVC fittings, EPDM gaskets
• Ferric Chloride 50% - PVC fittings, EPDM gaskets
• Ferric Sulfate 60% - PVC fittings, EPDM gaskets
• Ferrous Sulfate 20% - PVC fittings, EPDM gaskets
• Hydrochloric Acid 37% - PVC fittings, Viton gaskets
• Hydrofluoric Acid 48% - PP/PVC fittings, Viton gaskets
• Hydrofluosilicic Acid 26% - PP/PVC fittings, Viton gaskets
• Hydrogen Peroxide 50% - PVC fittings, Viton gaskets
• Magnesium Chloride 30% - PVC fittings, EPDM gaskets
• Peracetic Acid 30% - 316SS fittings, Aflas gaskets
• Phosphoric Acid 85% - PVC fittings, Viton gaskets
• Polyaluminum Chloride - PVC fittings, EPDM gaskets
• Potassium Carbonate 50% - PVC fittings, EPDM gaskets
• Potassium Hydroxide saturated - PVC fittings, EPDM gaskets
• Propylene Glycol - PP/316SS fittings, EPDM gaskets
• Sodium Bisulfate - PVC/PP fittings, EPDM gaskets
• Sodium Bisulfite - PVC/PP fittings, EPDM gaskets
• Sodium Carbonate 30% - PVC fittings, EPDM gaskets
• Sodium Hypochlorite under 16.5% - PVC fittings, Viton gaskets
• Sodium Thiosulfate 40% - PVC fittings, EPDM gaskets
• Sulfuric Acid 98% - CPVC fittings, Viton gaskets
• Urea Solution 50% - PP/PVC fittings, EPDM gaskets
• Zinc Orthophosphate - PP/316SS fittings, EPDM gaskets

Marked Tree, Arkansas, and the water fill before the first load

This tank is molded at Marked Tree, Arkansas and moves as freight at class LTL as the sheet lists it, at 78 by 47 by 52 inches, 124 pounds empty and 124 pounds to ship. The freight cost estimator prices the lane to your ZIP, and the listed price is before freight. The weight is not the problem; the size is. Six and a half feet long, nearly four feet wide and over four feet tall is a load two people cannot control, so line up a forklift, a telehandler or a loader with slings under the body before the truck is scheduled, and tell us at order what the address has. It comes down flat on its feet, never on a corner, never dragged, and never lifted by the lid. Have the deck or the slab finished, cured, level and anchored before the delivery date. Then do the fill that pays for itself: clean water to the lid, standing, with somebody reading the feet, the bearing surface, the 2 inch fitting and the lid seal over a proper hold rather than a glance. Drain it and let it dry before product goes in. Open the lid once with a light and photograph the floor while it is new and empty; that photograph is the baseline every later inspection of this tank gets compared against, and on a tank bought for its access it is the most useful record you will keep. The first fill is the only cheap time to find a problem, so do it in daylight with someone watching the base.