The Norwesco 175 Gallon HD Vertical Storage Tank is a 175-gallon vertical poly tank built for above-ground water storage where a compact footprint matters. It stands 60 inches tall on a 31 x 31 inch base, so it tucks into corners, equipment sheds, and tight pump-house bays that a wider tank would never clear. Molded in Natural White polyethylene, it carries the heavy-duty (HD) build with a 1.9 specific gravity rating, which means the tank is engineered to hold contents substantially denser than plain water.
Will it work for your site?
For water service, the numbers are straightforward. A full charge of 175 gallons of water weighs roughly 1,460 pounds, and the tank's structure is rated to carry contents up to 2,773 pounds. That headroom is what the 1.9 SG rating buys you: room for heavily mineralized, softened, or treated water without overworking the wall. The 31 x 31 inch footprint is the number to take to your pad. Our Tank Sizing Calculator and Tank Sizing Guide help you confirm 175 gallons matches your draw and refill cycle before you commit, and if this is a rural fire-water reservoir or reserve storage, the fire-water reservoir design guide walks through NFPA 22 sizing and cold-climate freeze protection. Want the freight number before you go further? Our Freight Cost Estimator quotes it live to your ZIP.
Fittings and setup
Fitting and gasketed bulkhead configuration on this Norwesco vertical tank is confirmed per order. Before you buy, call 866-418-1777 to spec the fill, outlet bulkhead with gasket, and vented lid for how you plan to plumb it. Confirming the wetted hardware up front saves a return trip when the inlet and outlet have to line up with existing piping. See the technical drawing on this page for the tank's overall geometry and port positions.
Setting it on a proper base
A vertical storage tank this size carries serious weight when full, and the base it sits on does most of the work keeping it sound over the years. The pad has to support the full loaded weight across the entire 31 x 31 inch footprint, not just the empty tank: plan for roughly 1,460 pounds with plain water and up to 2,773 pounds at the full rated load. Our concrete pad sizing guide lays out the ACI 360R-10 framework so the slab matches the loaded weight, not just the empty one. If this tank is part of a larger grey-water, rainwater, or condensate reuse setup, the industrial water reuse topology guide covers how to band and sequence multiple tanks.
The mistake to avoid
The most common error with an HD vertical tank is reading the 1.9 specific gravity rating as a green light for any liquid. SG is a weight-handling spec, not a chemical-compatibility statement. This tank is configured here for water service. Before you put anything other than water in it, confirm that both the polyethylene wall and the bulkhead gaskets and seals are compatible with your contents, and that the actual specific gravity stays within the 1.9 rating. The second mistake is undersizing the foundation, since the pad has to carry the full loaded weight across the whole 31 x 31 inch footprint, not the empty tank.
This Norwesco vertical storage tank ships LTL freight from the Fairfield, TX plant, with the rate quoted live to your ZIP code. Get your freight estimate in seconds with our Freight Cost Estimator, or call 866-418-1777 and our team will quote the freight and confirm the right tank for your application.
