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Color affects UV protection, liquid temperature and whether you can see the level through the wall.
The natural color of most tank resins is a translucent, milky white, which lets you see the liquid level through the sidewall. Inside a building, a translucent tank is usually the least expensive and just as effective.
Water tanks are usually black or forest green. Any opaque color works, as long as it blocks sunlight; translucent water tanks grow algae.
Sodium hypochlorite breaks down in UV light and at higher temperatures, so an opaque white tank is the best choice: it blocks sunlight and stays much cooler than a black tank on a hot day.
Black tanks are a good option when the chemical doesn’t degrade with heat; opaque walls block UV and help prolong the life of the tank. Color can also mark a hazardous chemical or match your branding. Opaque tanks need a level gauge, since you can’t see the level through the wall.
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