A 175 gallon black water tank, 30 inches across and 64 inches tall
The Norwesco 175 gallon vertical water storage tank, part number 41474, is a black polyethylene tank 30 inches in diameter and 64 inches tall, weighing 48 lb empty. It takes the 30 inch footprint of the next size down and adds height, so it is the one to buy when the space is a tall corner and you want every gallon the footprint can carry. It comes with a 2 inch polypropylene female NPT bulkhead fitting as the outlet, a 1-1/2 inch polypropylene female NPT bulkhead fitting as the inlet and an 8 inch lid on top. The tank is rated for liquids up to 1.1 specific gravity, so water and the light liquids near it; 175 gallons of water weighs 1460 lb. The resin is FDA compliant and UV stabilized, the service limit is 120 F, and Norwesco backs the tank with a 3 year warranty. Black keeps light out of the water and slows algae in a tank that sits in the sun.
Is this the right size? Get freight to your ZIP and add it to your cart above, or call 866-418-1777 with the height you have to work under.
Where a tall 175 earns its height
Standing 64 inches, this tank puts the water surface more than five feet above the outlet when it is full. That head floods a pump so it starts against water instead of air, runs a gravity line to a trough or a wash station below the tank, and feeds a drip system on a bench without a pump at all. It suits a household on well or hauled water that wants several days in reserve, a well house or pump room with a tall corner, a greenhouse holding rain for the beds, or a stock pen a long way from the hydrant. The trade for the height is stability and reach: a tank over five feet tall on a 30 inch base needs a strap to a wall or a post before the first fill, and the lid sits above comfortable reach for most people, so fill through the inlet and put the level gauge where you can read it from the ground. It needs a flat, level, continuous surface under the whole 30 inch floor. Check the volume against your real draw and refill interval with the tank sizing calculator and set the reserve from the tank sizing guide. For a rural fire reserve, the fire water reservoir design guide explains how the volume is set.
Openings and fittings
- Outlet. A 2 inch polypropylene female NPT bulkhead fitting, factory installed low in the wall. A 2 inch valve, camlock or hose adapter threads straight in, and a 2 inch drain empties the tank quickly. Support the valve and the first length of hose so the fitting carries water, not hardware.
- Inlet. A 1-1/2 inch polypropylene female NPT bulkhead fitting for the fill line or the overflow. Run an overflow to daylight away from the base.
- Lid. An 8 inch lid on top: large enough to fill from a hose, drop a float in and look inside, not large enough to reach in and scrub, so clean through the openings or with a wand.
- Drawing. Norwesco's drawing for this tank, linked under Technical Drawing on this page, shows the fitting positions and the lid location.
Sizes nearby
Just below it is the 165 gallon dark green tank, a shorter tank with a manway on top, the better choice if you want to reach inside to clean. Just above it is the 200 gallon green California-only tank. The colour swatches above the price switch between the versions of this tank.
Shipping and receiving
The tank ships LTL from Norwesco's Burnet, Texas plant, 30 by 30 by 64 inches on a pallet at a ship weight of 50 lb. The listed price is before freight; the freight cost estimator gives the lane cost to your ZIP, or request a written quote. For a permanent outdoor base, the concrete pad sizing guide has the framework. At the tailgate, check the part number against 41474 on the bill of lading and look at the wall and both fittings for transit damage. Strap it, fill it with water the first time and watch the fittings and the base for a day before it goes into service; the water fill acceptance test guide gives the method.
Questions before you order? Call 866-418-1777.
Freight and documents
Ships from: Burnet, TX. 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 Norwesco 41474.
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 175 Gallon Plastic Water Storage Tank video (70 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.
3 Year Warranty
