I'm looking to buy a new cover for a downeast windsor hot tub. I found a cover on craigslist that is the same size (94" x 94") I need, but has square corners. I need a cover with 4" corner radius.
The hot tub I have is for a house I'm renting, so I'm trying to cheap out on a used cover, since I may only use it for a year. Landlords won't help with payment.
How big of a difference will the square corners make in keeping heat and other factors?