1000 Gallon Plastic Vertical Water Storage Tank in Green

Farms and ranches buy the low 1000 because the delivery is a hose and a gate valve

The duty here is water somebody moves by hand. This is the tank a ranch puts on a pad behind the barn to fill stock troughs, a nursery sets under a shed roof to feed a drip line, a rural homeowner uses to take a hauled load off a truck, a contractor stands on a site to fill a bowser or a compaction wagon, and a fire-cautious property holds as standing water for a pump. In all of those the delivery is a hose into a manway or a tanker off-load into the inlet, and the draw is a gate valve and a pump rather than a plumbed process, which is why the shape matters more than the specification. At 65 inches tall the manway is reachable from a step and a person can look in without a platform; at 72 inches across the tank sits low enough to hide behind a fence line and low enough to stay put in wind. What it costs is floor: six feet of diameter for a thousand gallons, where the narrower shells in the family do it in five. Under it, the pad is the whole installation. A rotationally molded floor bears on every part of the surface it touches and nothing else, so the slab or compacted base is flat, level and continuous, sized for better than four tons of water on a 72 inch circle, and poured wider than the tank rather than to its edge. The framework for that is in the concrete pad sizing guide, and on a farm pad it is the step most often replaced with gravel and hope. Strap or band it while it is empty at 205 pounds, because that is the window when wind moves tanks, and on any site where the tank feeds a line that matters, plan the overflow so a full tank spills away from the pad rather than under it. Run 1000 gallons against your real daily draw and the interval between deliveries in the tank sizing calculator before you settle on it, and take the reserve you should never dip into, plus the freeboard water needs as it warms, from the tank sizing guide.

Two ways to hold 1000 gallons: 72 by 65, or 60 by 89

The decision on this sheet is silhouette, and the reason to take this tank over its own black twin is colour rather than shape: WB41R is the same 72 by 65 inch shell listed at 160 lb where this one is listed at 205 lb, both figures as the sheet gives them, and green is the wall people choose when the tank has to disappear into a yard or a tree line and when they would rather daylight did not reach the water. Against the 60 by 89 inch shells the trade is plain: those put the same 1000 gallons on a five foot circle and stand nearly a foot and a half taller, which is the buy when the pad is small or the fill point is high, while this shape keeps the manway at step height and the whole tank below a fence. The 750 gallon SII-32517 is the slim one at 48 by 106 inches for a genuinely tight footprint, and the 1100 gallon SII-WB42 goes further in this tank's own direction, 86 inches across and only 53 inches tall, for a site that wants the lowest possible profile and has the floor for it. Between them, this is the low, wide, green 1000 with a bolted outlet already in the base.

Height or floor the limit? The table has both shapes; freight to your ZIP is quoted on each row, or call 866-418-1777 with the site.

A 2 inch bolted outlet and the pump that hangs off it

• The pump: with 65 inches of shell there is a little over five feet of standing water above the base, which is modest suction head and decides the layout. Mount the pump below the outlet so the column keeps it flooded, or use a self priming pump if it has to sit level with the tank; a pump set above the fitting will lose prime on the tail of every draw and sound like a failing pump instead of a bad layout.
• Prime and protection: give the pump a straight run before the first elbow, a strainer it can be cleaned without breaking the line, and a low level float or a run-dry stop so it quits with water still over the fitting. On a wide shell the last inches of level cover a lot of floor, so a dry run arrives suddenly.
• Outlet: a 2 inch polypropylene stainless steel bolted fitting at the base, as the sheet lists it. A bolted fitting is served by keeping the bolting accessible: leave a wrench path around it, do not bury it in a valve box, and re-check the bolting after the first full fill and the first cold snap.
• Inlet: a 1-1/2 inch polypropylene female NPT bulkhead fitting, which is where a tanker hose or a pressurised fill line lands so a delivery is not hammering water through the manway from height.
• Access: an 18 inch threaded vented manway on top, 65 inches up, opened from a step. Keep it closed and the vent clear; a vent that is blocked while a pump draws is how a polyethylene tank gets pulled in.

The first joint off the outlet is flexible, always, because a rigid run bolted to a polyethylene base puts every degree of thermal movement and every pump start into the fitting, and a pipe set in concrete will hold while the tank moves. The first valve rides on its own support off the pad rather than on the wall. Where winter bites, trace or insulate the valve and the first run of pipe and leave the body to ice from the top down; a plastic valve full of ice is scrap, a tank with a crust on the surface is a tank. Keep a spare gasket for the outlet on the shelf, not on a purchase order, because it is the part that fails on a holiday weekend.

Stock water, hauled water and irrigation fill

A green 1000 at this height is bought for water people handle: stock and trough supply on a farm or ranch, a hauled load taken off a truck at a property with no well, irrigation and drip fill at a nursery or a market garden, a construction water supply for dust control and compaction, a wash-down or equipment rinse tank on a yard, and standing water held on a rural property as a reserve. On that last job, be honest about the difference between water in a tank and a designed fire reserve: sizing, draw rate, connection and freeze protection are engineered as a system, and the fire-water reservoir design guide is the place that argument gets made properly. Where the tank is one stage in a system that collects, holds and re-uses water rather than a standalone vessel, the industrial water reuse tank topology article places a tank this size in the sequence and says what has to be true upstream of it.

Merced to the gate at class 400, 205 pounds empty

The SII-WG41R is molded at Merced, California and moves as freight at class 400 as the sheet lists it, shipping at 72 inches by 72 inches by 65 inches. Six feet across is wider than a pallet and wider than a doorway, so it rides as a tank rather than as a parcel and it comes off the deck with a forklift, a telehandler or four hands, never by dragging it on its base. The freight cost estimator prices the lane to your ZIP, and the listed price is before freight. Walk the approach before delivery day: a gate, a cattle grid or a low branch decides more farm deliveries than the rate does. Then accept the tank properly rather than filling it and hoping. Fill to the manway with clean water, hold it, and read the base, the pad edge, the bolted outlet and the inlet bulkhead through the hold; the method, the hold time and what a settling pad actually looks like are set out in the hydrostatic test methodology guide, and that first fill is the cheapest hour this installation will ever get. The vent screen is the cheapest part on the tank and the one that saves it; look at it every time the manway opens.