Industries · Agriculture
A crop does not care what the tote looks like.
Agriculture is the sector where the used-container argument is most obviously correct and most often over-specified. Fertiliser, nutrient solution and irrigation water are indifferent to cosmetic staining. Buy Grade B, spend the difference on a better valve and a proper stand, and put the rest into the operation.
The short answer
Grade B reconditioned for fertigation, nutrient mixing, field water and non-contact storage. Documented food grade or rebottled for livestock water and anything a crop is consumed from. Watch gross weight on UAN 32 (roughly 3,160 lb in a full 275) and wrap any water tank against algae.
Applications
What growers actually use them for.
| Application | Grade | Size | Gasket | Notes |
|---|---|---|---|---|
| Liquid fertiliser storage (UAN, 10-34-0) | Reconditioned B | 275 gal | EPDM | Roughly 3,160 lb gross on UAN 32 — check loader rating |
| Fertigation injection | Reconditioned B | 275 gal | EPDM | Pair with a stand and a metering pump |
| Nutrient mixing (hydroponic) | Documented food grade or rebottled | 275 gal | EPDM | Agitation needed; nutrients stratify |
| Field / irrigation water | Reconditioned B or C | 275 / 330 gal | EPDM | Opaque wrap, or you grow algae |
| Livestock drinking water | Documented food grade / rebottled | 275 gal | EPDM | Documented history only. No exceptions. |
| Compost tea brewing | Reconditioned B or C | 275 gal | EPDM | Aeration manifold and a draw-off above the sediment |
| Maple sap collection | Documented food grade | 275 / 330 gal | EPDM | Keep cool; sap spoils quickly in warm weather |
| Pesticide mixing | Dedicated unit | 220 / 275 gal | Viton | Permanently dedicated. Never rotates back. |
| Molasses / liquid feed | Documented food grade | 275 gal | EPDM | Heat or recirculate in cold weather; SG around 1.4 |
The grade call
Why Grade B is the grower's answer.
On a large operation the grade decision can matter more than many equipment purchases, and it is made casually almost everywhere.
The functional difference between Grade A and Grade B reconditioned totes is mostly cosmetic. Suppliers' Grade B typically allows light staining or a colour shadow in the wall and permits a cage that has been straightened. Grade names are not standardised, so ask each supplier for its written criteria.
Reconditioned units of either grade are commonly pressure-tested and refitted with a new valve seat and cap gasket — ask the supplier what each grade includes. For fertiliser, irrigation water or nutrient solution, there is no mechanism by which the staining could matter.
Across a fleet, the difference can pay for tilting stands, a proper containment bund, or the agitation equipment that stops nutrient solution stratifying between the first pour and the last. Pricing is by quote from partner suppliers.
The one place not to economise is livestock and anything a person or an animal drinks. There, buy documented food grade and buy it without arguing.
What to spend the difference on
- A tilting stand, so the last few gallons drain without lifting.
- A containment bund sized to your local requirements.
- A clamp-on agitator or recirculation loop for nutrient solutions.
- An opaque wrap for every water tank.
- Spare valve seats and an inlet screen.
Four field problems and their fixes
Algae in the water tank
Light is the cause and opacity is the fix. Wrap it, paint it, shade it. Every other approach is managing a symptom.
Nutrient solution stratifying
Heavier salts settle. Your first pour and your last pour are then different products, which shows up as uneven growth long before anybody suspects the tank. Fit a clamp-on agitator or a recirculation loop.
The valve that will not fully close
Grit in the seat, usually from a tank filled with unfiltered field water. Fit an inlet screen, and keep a spare seat on hand — it is a quick replacement.
Frozen and deformed bottles
Drain below the freeze line before hard weather, or insulate and heat-trace. A deformed bottle is often still serviceable; a split cage weld is not.
Rainwater for irrigation
Collecting off a barn or greenhouse roof is one of the most useful jobs for a used IBC. One inch of rain on 1,000 square feet of roof yields about 620 gallons — more than two totes — so even a small manifold on a barn roof can carry a market garden through ordinary dry spells.
Fit a leaf screen, a first-flush diverter and an overflow that routes away from the foundation. Wrap the tanks. Plan the drain-down for winter. Manifold the tanks at the base so they fill and draw evenly rather than plumbing them in series.
The complete rainwater harvesting guide covers sizing, filtration, pumps and what to check locally before you collect.
Agricultural questions
Can I store liquid fertiliser in a used IBC tote?
Yes, and it is one of the most common agricultural uses. UAN 32 at an SG of about 1.32 puts a full 275 at roughly 3,160 lb gross, so check your loader before you fill. Liquid fertiliser is generally compatible with HDPE and EPDM gaskets, and does not care in the slightest about cosmetic staining — which is why Grade B reconditioned is usually the sensible purchase. Check the product SDS for your specific formulation.
Are used totes safe for livestock water?
Only with documented food-grade prior contents or a new bottle. Animals drinking from a container whose history you cannot verify is a risk nobody should be taking. For troughs and stock tanks, ask the supplier for the prior-contents and wash documentation, and check current regulations.
Can I use an IBC tote for spraying pesticides?
You can mix and transport in one, subject to the product label and your state's requirements — but understand that the tote is then permanently dedicated. Registered pesticides can bind into polyethylene, so the container should never go back to any other service, and most buyers of used totes will not take it except as scrap, if at all. Dedicate a tote to it, label it unmistakably, never rotate it back into the general fleet, and check current regulations.
How do I stop algae growing in a water tote?
Block the light. Natural HDPE is translucent and algae need only a modest amount of light to bloom. An opaque wrap, a coat of exterior paint or a shaded location solves it. Chemical treatment is treating a symptom you could have prevented cheaply.
Will a tote survive a hard winter outside?
The container usually will; the contents may not. Water expanding as it freezes can deform a bottle and split cage welds. Either drain below the freeze line before hard weather, insulate and heat-trace, or accept that outdoor water storage is seasonal. Fertiliser solutions have their own salt-out temperatures — check the specific product's SDS rather than assuming.
Fertiliser reference
The products growers actually store, with their numbers.
Specific gravity is the figure that catches people out. A tote of UAN is not a tote of water, and the difference decides whether your loader is adequate.
| Product | Analysis | Approx. SG | 275 gal gross, approx. |
|---|---|---|---|
| UAN 32 | 32-0-0 | 1.32 | 3,160 lb |
| UAN 30 | 30-0-0 | 1.30 | 3,120 lb |
| UAN 28 | 28-0-0 | 1.28 | 3,070 lb |
| Ammonium polyphosphate | 10-34-0 | 1.40 | 3,350 lb |
| Ammonium thiosulphate | 12-0-0-26S | 1.33 | 3,190 lb |
| Potassium thiosulphate | 0-0-25-17S | 1.46 | 3,480 lb |
| Calcium nitrate solution | 9-0-0-11Ca | 1.50 | 3,580 lb |
| Urea solution 20% | 20-0-0 | 1.06 | 2,570 lb |
| Liquid potash | 0-0-15 | 1.17 | 2,820 lb |
| Molasses, feed grade | — | 1.40 | 3,350 lb |
| Humic acid concentrate | — | 1.10 | 2,660 lb |
Field practice
Six problems, and the fix for each.
| Problem | Cause | Fix |
|---|---|---|
| Tank goes green | Translucent HDPE in sunlight | Opaque wrap or exterior paint |
| Uneven crop response | Nutrient stratification in the tank | Clamp-on agitator or recirculation loop |
| Valve will not close | Grit from unfiltered field water | Inlet screen, spare seats on the shelf |
| Deformed bottle in spring | Partially full through a hard freeze | Drain-down valve at the lowest point, used before hard weather |
| Weak application rate | Salt-out in cold weather | Recirculate before use; check SG with a hydrometer |
| Product degrading in the tank | Buying a bigger tote than the turn rate justifies | Smaller format, or a shorter order cycle |
Pesticide containers become permanent
You can mix and transport registered products in an IBC, subject to the label and your state's requirements. What you should not do is rotate that container back into any other service afterwards. Registered pesticides can bind into polyethylene and are not reliably removable by washing.
Dedicate the tote, label it unmistakably, colour-band the cage, and keep it physically separate from the rest of the fleet. Most buyers of used totes will take it only as scrap, if at all, and it should never hold anything a crop or an animal will contact. Check current regulations for disposal.
Irrigation and water
Sizing storage against a dry spell.
Most on-farm water storage is sized against a storm rather than against demand, which is how a system ends up overflowing constantly and empty when it matters.
| Use | Example daily demand | Two-week reserve | Totes needed | Roof to refill |
|---|---|---|---|---|
| Market garden, 1/4 acre | 180 gal | 2,520 gal | 10 × 275 | 4,760 sq ft |
| Greenhouse, 2,000 sq ft | 120 gal | 1,680 gal | 7 × 275 | 3,170 sq ft |
| High tunnel, 30 × 96 ft | 90 gal | 1,260 gal | 5 × 275 | 2,380 sq ft |
| Nursery, container stock | 300 gal | 4,200 gal | 16 × 275 | 7,930 sq ft |
| Cattle, 25 head | 300 gal | 4,200 gal | 16 × 275 | 7,930 sq ft |
| Sheep, 100 head | 200 gal | 2,800 gal | 11 × 275 | 5,290 sq ft |
| Poultry, 500 birds | 30 gal | 420 gal | 2 × 275 | 790 sq ft |
| Orchard, drip, 2 acres | 800 gal | 11,200 gal | 41 × 275 | 21,150 sq ft |
Seasonal calendar
A grower's year, in containers.
What to order, service and put away, month by month. Built around a temperate row-crop and market-garden season; shift it to suit your climate.
| Month | Do | Why |
|---|---|---|
| January | Request quotes for the season's fertiliser totes | Ahead of the spring rush |
| February | Inspect last year's fleet with a torch | Crazing found now is a container you can plan to replace |
| March | Fill and stage fertiliser | Ahead of the application window |
| April | Commission irrigation and rain systems | First-flush diverters reset, screens cleared |
| May | Check nutrient tanks for stratification | Agitate or recirculate before the first draw |
| June | Wrap or shade any water tank | Algae bloom quickly in summer sun |
| July | Mid-season valve seat check | Grit from field water abrades seats |
| August | Order autumn and cover-crop inputs | Ahead of the September rush |
| September | Empty and rinse seasonal units | Residue is easiest to remove before it dries |
| October | Ask about reconditioning or rebottling | Gives a partner supplier time before spring |
| November | Drain everything below the freeze line | A partially full tote is the one that splits |
| December | Sell what you will not use next year | Frees space; usable empties have resale value |