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it will pay for itself in chemical savings over time.
People will argue that point and I don't think it needs to be "sold' that way. Ozone will make life easier, that alone is enough for many people. You'll use less chems but maybe not much less but it sure makes it easier to care for. I've seen many people with frustrated looks on their faces that would pay twice that if they could get something to eleviate their issues and a good CD ozone unit can help a lot IMHO!!!