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5000 Gallon Water Storage Tank – Poly-Mart manufactures a 5000 Gallon Water Storage Tank made from the highest quality FDA-Approved, NSF-Approved, Food-Grade, BPA-Free, High Density Polyethylene (HDPE). This material features built-in UV inhibitors to avoid color fading and break down from harsh sunlight. Our 5000 Gallon Water Storage Tank is designed for above ground use, and like other polyethylene holding tanks, they are not suitable in applications where the tank itself would be under pressure.  This 137” Diameter x 92” High Plastic Water Tank has a total capacity of 5200 Gallons when completely full and can be ordered in 13 different colors!

Black and Dark Green are the most popular Plastic Water Storage Tank colors, therefore we take our Dark Green and Black material through an extra process called “Compounding”. The Compounding process adds pigment at a high enough and even enough concentration to completely block UV Rays. Although it costs us more to take our material through this process, we know it makes for a better performing product and is a big part of what makes up the “Poly-Mart Difference“. Unlike any Water Storage Tank sold at a Big Box Retailer, our tanks are pitch dark inside which prevents waterborne algae from growing inside your tank, minimizing on-going tank maintenance. However, since Dark Gray and Dark Brown are naturally dark colors, these colors do a great job at limiting UV light penetration and will perform just as well as any Dark Green or Black Tank sold at a Big Box Retailer.

Like all of our Vertical Tanks, the Poly-Mart 5000 Gallon Water Storage Tank is designed with 4 molded-in Dome Flats on the top of the tank and 8 Layout Flats at the base of the tank. These 12 flat spaces set our tank design apart from others and provide flat surfaces for installation of additional Outlet/Inlet fittings, Tank Over Flow Fittings, and Tank Components like Float Switchesand Tank Gauges. Your Installer or Contractor will love having flexibility when needing to install additional fittings for your application.