Norwesco 4995 Gallon Black Vertical Storage Tank

Where it goes and what it holds

This is a big water tank for a site that cannot take a tall one: hauled water storage for a home or a ranch under a barn eave, a rainwater cistern behind a commercial roof, a fire reserve beside a remote building, or irrigation buffer at a nursery. At 89 inches the top is a little over seven feet up, so the 22 inch manway can be opened from a short step, and the big opening takes a float valve or a submersible pump and gives real cleaning access. A full tank is more than twenty tons spread over a circle nearly twelve feet across, so the pad has to be flat, continuous and level under the entire base; our guide to concrete pad sizing for above ground polyethylene tanks sets out the slab. If rainwater is the plan, our note on first flush diverter sizing for rainwater harvesting explains what goes ahead of the inlet; if the tank is a fire reserve, our guide to fire water reservoir design for rural and remote sites covers sizing and freeze protection. Anything other than water gets checked in our chemical compatibility guide first, and liquids heavier than 1.5 times water need the heavy duty tank in this mould, not this one. For the volume itself, use the tank sizing calculator and tank sizing guide.

Openings and fittings

1. Outlet. A 3 inch polypropylene female NPT bulkhead fitting with a siphon tube, factory installed. The siphon tube reaches down inside the tank so the fitting can sit above the floor and still draw from near the bottom; Norwesco's drawing shows the fitting height and the tube. A 3 inch outlet fills a truck or feeds a fire pump quickly; for a house or a drip system you can bush it down. Support the valve and the first length of pipe within a foot of the wall so the fitting carries liquid, not hardware.
2. Manway. A 22 inch threaded vented manway on top. Leave the vent clear so air can move as the level changes, and keep the lid on; an opening this size is a fall hazard for a child or an animal.
3. Extra ports. Only the one outlet comes installed. An overflow, a second draw or a top fill port means extra bulkhead fittings; tell us when you order and we quote them with the tank.
4. Drawing. Norwesco's drawing for this tank, linked under Technical Drawing on this page, shows the outlet position, the manway and the base profile.

Sizes nearby

Same tank in white, for a visible level line: the 4995 gallon white vertical tank. For heavier liquids, the heavy duty 1.9 wall in this mould comes as the 4995 gallon black heavy duty vertical tank or the 4995 gallon light blue heavy duty vertical tank. Nearby sizes: the 4200 gallon black vertical tank below it and the 5000 gallon black vertical tank, a different mould; compare its diameter and height on its page against your site. The colour and wall swatches above the price switch between the versions of this tank.

Shipping and receiving

The tank ships LTL at freight class 400 from Norwesco's Fairfield, Texas plant as a 142 by 142 by 89 inch load weighing 854 lb. A tank this wide travels on a flatbed and needs a forklift with long forks, a loader with straps or a crew and a clear path to the pad; plan the unloading before the truck is booked. The listed price is before freight; the freight cost estimator gives the lane cost to your ZIP. At the tailgate, check the part number against 44822B on the bill of lading, look over the base, the outlet fitting and the siphon tube for transit damage, and fill with water the first time before the tank carries anything else.

Questions before you order? Call 866-418-1777.