Cleaning your hot tub cover is an important part of spa maintenance. A little bit of routine maintenance can help prolong the life of your hot tub cover. The vinyl should be cleaned with a mild, soapy solution rather than a detergent, as harsh cleaning products can actually remove some of the top coat off the vinyl.
Wipe the vinyl down a couple of times per month, or as needed. The inside of the zipper area should also be cleaned (at least twice a year), as this is a perfect hiding place for mildew to form over time. While you're at it, consider replacing your spa filter (or at least having an extra one on hand). Each filter cartridge sold on our site comes in a set of 2 and is mailed directly to your door.
Our hot tub cover and pool cover blog also contains helpful hot tub and pool maintenance advice, humour and interesting spa-related facts, and it's updated regularly.