A 35 gallon double wall tank in cross-linked polyethylene
The Snyder 1000112N42 is the smallest double wall chemical tank in Snyder's line: a 35 gallon cross-linked polyethylene primary rated for a specific gravity of 1.9, or 555 pounds of contents against 292 for water, standing inside its own secondary containment in a shell 22 inches across and 36 inches tall, weighing 45 pounds. Cross-linked resin is the wall for hypochlorite and the other oxidizers; the double wall is the spill pallet built in, for the day tank beside a dosing pump where a leak must never reach a floor drain. A 6 inch threaded, vented lid, a 3 year warranty, and it ships by UPS.
Buying for a site, a fleet or a district? Request a written quote with freight to your ZIP, or add it to your cart above and call 866-418-1777 with any question on the fit.
Containment at day-tank scale
A 35 gallon day tank holds a week or so of hypochlorite for a small water system, and the usual arrangement is a single wall tank on a spill tray that fills with rain, dust and whatever was rinsed off it last. The double wall replaces the tray with an interstice that stays closed and dry until the day the primary leaks, when it holds the whole 35 gallons; the SPCC 40 CFR 112 compliance walkthrough walks through when a double wall tank stands in for a berm under a spill plan. Cross-linked polyethylene holds its shape under a dense liquid, resists the stress cracking oxidizers cause, and tolerates heat; the trade is that it cannot be plastic-welded, so any added port is a bulkhead through a drilled hole, decided before the tank is filled. The Captor double wall freeboard sizing guide works out how much of the nominal 35 gallons is usable once thermal expansion and the interstice are accounted for. Below is the resin's rated chemistry; check the liquid at its concentration in the chemical compatibility database. The tank sizing calculator sizes a day tank to the pump's rate and the refill schedule, and the tank sizing guide covers the reserve.
Grades on the 22 x 36 inch double wall, and the size beside it
| Part | Gallons | Diameter x height | Empty weight |
|---|---|---|---|
| 1000112N42 (this tank, XLPE) | 35 | 22 x 36 in | 45 lb |
| 1000112N30 (sulfuric grade) | 35 | 22 x 36 in | 45 lb |
| 1000112N48 | 35 | 22 x 36 in | 45 lb |
| 1000112N51 | 35 | 22 x 36 in | 45 lb |
| 5680002N42 (XLPE) | 60 | 26 x 41 in | 55 lb |
| 1541000N45 (single wall, ASTM certified) | 30 | 23 x 23 in | 19 lb |
The N30 is the sulfuric acid grade and the N48 and N51 are the linear resins for milder chemicals, all at the same weight in the same shell. The 5680002N42 is the next cross-linked double wall up, 60 gallons on a base 4 inches wider and 5 inches taller. The 1541000N45 is the single wall 30 gallon tank for the bench that already has a spill tray.
Comparing against another maker? Send the competing spec to 866-418-1777 or a quote request and we will show the differences honestly.
What is fitted, what alarms, what is watched
- Access: 6 inch threaded, vented lid on the primary; filled by hose or funnel from a carboy, vented outside on hypochlorite.
- Outlet: through both walls together; specify the bulkhead fitting for the chemical when ordering, and a flexible line to the pump suction.
- Service limit: 120 F / 48 C.
There are two levels to watch: the primary, with a sender chosen for the chemical per the level gauge selection guide, since hypochlorite is hard on wetted parts, and the interstitial space, which is the leak alarm and gets a float switch or a look each shift. A day tank is also where overfills happen, because a carboy or a tote pump runs until someone stops it; the tank spillover redundancy guide covers the high-level alarm and automatic cutoff that stop a release before the interstice has to catch it. Bracket the tank so a snagged hose cannot drag it, mount the dosing pump below the outlet so it primes by gravity, and shade it; hypochlorite degrades with heat and time, so buy small lots often.
The work it does
Hypochlorite day tanks at small water systems and well houses, acid and caustic make-up on a lab or pilot skid, chemical feed carts, and any 35 gallon vessel of oxidizer inside an occupied building. One chemical per tank, labeled, rinsed at every changeover, which takes a minute.
Freight, in plain terms
At 45 pounds and 22 by 22 by 36 inches, the 1000112N42 ships by UPS rather than freight; the freight cost estimator shows the cost to your ZIP, and the listed price is before shipping. Unbox it, check the lid and the outlet fitting, water-test the primary and confirm the interstice stays dry, then drain and dry before the first chemical goes in. Save the pallet; a tank that ever has to move again is easier to move on it.
Liquids this resin is rated to store
These entries are the manufacturer's ratings for this resin, each with the concentration limit and the fitting and gasket to specify. Your concentration and temperature are confirmed 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
- Hydrofluosilicic Acid (26%) - PP/PVC fittings, Viton gaskets
- Magnesium Chloride (30%) - PVC fittings, EPDM 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 Carbonate (30%) - PVC fittings, EPDM gaskets
- Sodium Thiosulfate (40%) - PVC fittings, EPDM gaskets
- Urea Solution (50%) - PP/PVC fittings, EPDM gaskets
Freight and documents
Ships from: Marked Tree, AR. LTL freight is quoted to your ZIP with the freight cost estimator or by phone at 866-418-1777. The listed price is before freight.
Technical drawing (PDF) for Snyder Industries 1000112N42.
See this tank
Interactive 3D model with live fill. This tank has an interactive 3D model built to its manufacturer dimensions. Rotate it, and set a fill level to see how much liquid it holds at any height. Open the 3D view on the product photo above. Download the 3D model (GLB).
Product video. Watch the Snyder Industries 35 Gallon XLPE Vertical Double Wall Liquid Chemical Storage Tank in White video (71 seconds) with dimensions, fittings and shipping notes.
Ready to order?
Add it to your cart at the top of this page, get LTL freight to your ZIP, request a written quote, or call 866-418-1777. The listed price is before freight.
