500 Gallon Plastic Water Storage Tank for Long-Term Outdoor Use

Large 500 Gallon Capacity: Store high volumes of water for long-term use

Food-Grade Safe Material: BPA-free HDPE approved for potable water storage

UV-Resistant Design: Built-in inhibitors help prevent sun damage and fading

Wide 16" Manway Lid: Easy filling, cleaning, and inspection access

Multiple Flat Mount Areas: Add fittings, gauges, or overflow lines easily

Bottom Drain System: 2" bulkhead with plug allows controlled water release

500 gallon plastic water storage tank for long-term water storage and outdoor use gives you a simple way to store large amounts of potable water safely. This tank works well for homes, farms, and emergency setups. You get a strong, reliable container that helps you stay prepared when water supply is limited.

The tank is made from high-density polyethylene that is food-grade, BPA-free, and approved for drinking water use. This matters because it keeps your stored water safe over time. Built-in UV protection helps prevent cracking, fading, and breakdown when the tank sits in the sun for long periods.

The dark color options, like black and dark green, block light from entering the tank. This helps stop algae growth inside, which reduces maintenance and keeps water cleaner. Lighter colors still perform well, but darker tanks give you better long-term water quality with less upkeep.

A 16-inch manway opening on top makes filling and cleaning easier. You can quickly access the inside without special tools. The tank also includes a 1.5-inch top bulkhead and a 2-inch bottom outlet, giving you flexible options for connecting hoses, pumps, or drainage systems.

This tank includes molded flat areas on both the top and bottom. These flat spots make it easier to install extra fittings like float valves, gauges, or overflow lines. If your setup needs customization, your installer has more room to work with compared to standard tanks.

The vertical design saves space while still holding a large volume of water. At 48 inches wide and 71 inches tall, it fits in many outdoor areas without taking up too much ground space. It is made for above-ground use only and should not be used under pressure.

This tank works well in real situations where water storage matters. You can use it for rainwater collection, backup drinking water, irrigation, or off-grid living. It is also useful for cabins, RV setups, and rural properties where water access can be limited.

If you are collecting rainwater, the wide opening helps capture more water quickly. The bottom outlet makes it easy to connect a garden hose or pump system. This allows you to move water where you need it without lifting or dumping.

Contractors and installers benefit from the flat mounting areas. Adding custom fittings is easier and cleaner compared to curved tank surfaces. This saves time during installation and gives you more control over your system design.

Because the inside stays dark in certain colors, you spend less time cleaning algae buildup. That means less maintenance and more reliable water storage over time. This is especially helpful in hot climates like Texas where sunlight is strong.

The tank is also lightweight for its size at about 95 pounds. This makes it easier to position before filling. Once in place, it provides a stable and long-lasting solution for storing large volumes of water safely.