Water storage tanks barrels, drums, collapsible tanks and rainwater tanks

Water storage barrels and drums in the 55-gallon (≈200 L) class store more water per footprint; they are usually sold with two bung caps, a bung wrench and a siphon or drum pump. Collapsible tanks and water bladders fold flat until an emergency is forecast — popular with apartment dwellers and as a bathtub-fill option. Larger vertical polyethylene tanks for homes and cabins can be quoted per project. For portable 5–25 L jugs, bricks and cans see water storage containers.

• Water storage tanks (this page): barrels and drums (55-gallon class), collapsible tanks and larger tanks, plus rainwater tanks — high capacity, stays put.
• Water storage containers: portable, stackable jugs, bricks and cans in the 5–25 L class — carry, stack and rotate.
• Emergency water storage guide: how households plan quantity, rotation and treatment — and what that means for your product range.

Water barrels and tanks are typically blow-moulded or rotomoulded HDPE or LLDPE, in opaque blue or another dark color to limit light and algae growth. Drinking-water suitability depends on the resin, colorants and production controls. We do not assert food-grade, BPA-free, NSF/ANSI 61, FDA or any other drinking-water certification by default: the material specification is set by the customer, and resin declarations or test reports can be provided on request where available. Your labels should carry the storage, cleaning and rotation guidance your market and your compliance team require.

A rainwater tank collects roof runoff for garden watering, cleaning and other non-drinking uses, and gives a household a reserve of utility water during outages or watering restrictions. We quote rain barrels (approx. 190–380 L / 50–100 gal), slimline wall tanks for narrow side yards and larger vertical rainwater tanks, with inlet screens, overflow outlets, brass or plastic taps and linking kits to join tanks.

Tanks are filled from the roof through a rain barrel diverter, which also returns the overflow to the downspout once the tank is full — so stored water does not end up pooling against the foundation. Rainwater is untreated; packaging should state that it is not for drinking unless treated and permitted by local rules.

Preparedness brands often sell barrel kits beside portable water containers and emergency kits, and link to an emergency water storage guide; hardware and garden retailers pair rain barrels with diverters and outdoor faucet covers for seasonal end-caps. Send capacities, colors, cap and spigot types, accessories and packaging and we propose a range; mixed containers with other wholesale categories are welcome.