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A spa blanket is a beautiful thing, it keeps your cover dry and makes the varmints sing.Ol' possum, skunk, woodpecker, too,Spa blanket saves the day from all that critter poo.
Let's clear the air. The foam does not absorb water. The small air spaces in the foam are displaced with water at the molecular level. It happen through a term we've all heard before-----OSMOSIS.
Nice before picture............Can I offer you a floating blanket for an after picture?
QuoteA spa blanket is a beautiful thing, it keeps your cover dry and makes the varmints sing.Ol' possum, skunk, woodpecker, too,Spa blanket saves the day from all that critter poo.
I have decided that the spa blanket is not only an extra measure of insulation in itself, but because it protects the spa cover from the moisture, it adds even more insulating value. A waterlogged spa cover looses insulating capability. I guess I am the biggest fan of the spa blanket, but I really think mine makes a difference.
Windsurf, I can't prove this but...when everyone was posting about tubs overheating from the heat and sun, mine did not. My temperature stayed just where it belonged (98)in spite of 100+ temps and full sun exposure. I really believe that the blanket makes a difference in insulating value and the underside of my cover is dry...so I'm sold.Bill, it really hasn't been a big deal to take it off and I think it is well worth the effort, but you have to weight the benefits :-/
The chlorine cloud trapped under the cover gets to the vapor barrier inside the cover, and breaks it down. Then the foam cores begin putting on water weight.Doc is too modest to mention this, but his covers have a much heavier vapor barrier. And if you want, I think he still offers to double-wrap them for a small up charge.
Oh I love experiments, but I don't think given the crazy temperature changes that we are beginning to experience, I could do anything that would allow us to draw any significant conclusions.