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Ok, either my ozone system is whoopin' butt or that spa blanket I bought is crap.
Take the deal. Doc's blankets are much much different than what you've got. I also guarantee you will find it easier to use.
Never take the first offer! I would have said "NO DEAL" and waited for Doc to make a better offer. I bet you could have gotten a free blanket and some free chems for trying it out!!
Looks like a very inefficient ozone system, I hate to see what the cover will like in a couple of years.