Canwest Tanks manufactures polyethylene tanks in sizes ranging from 40 imp. gals. up to 5,600 imp. gals. using high-density polyethylene (HDLPE) resin with UV inhibitor, making them suitable for outdoor applications. All our polyethylene tanks are CSA/NSF 61 certified for potable water application. Therefore, any tank may be used safely for storage of potable (drinking) water.

Vertical water tanks are used mainly for stationary potable water storage or rainwater collection for above ground storage.

Our leg tanks are used for above ground liquid storage where a low profile tank is the best option.


They can also be utilized for transporting water in the back of a pickup truck or in a van.

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The regular underground cisterns can be buried with 2 ft. earth cover,and LP Series can be buried up to 4 ft.

These tanks are tapered. The bottom diameter is less than the top. Each tank has a removable lid that slips over and covers the top. Fittings are extra.

These tanks include a 16” diameter threaded lid. Fittings are extra.

Steel stands are available upon request and are quoted separately.