Maintenance of the spa cover
Always keep the cover free of dirt. Clean the surface with a cover cleaner or a soft and warm soapy water. Do not use silicone-based products because they dry up and it could possibly crack the vinyl.
BEWARE : Never stand on the cover. The cover must be removed when chemicals are added into the spa. This extends the life of the cover. The gases produced by burned chemicals will be trapped under the cover if the cover is not removed. These gases attack the protective foam of the spa cover. Eventually, the foam will absorb moisture and will become heavy. This will not be covered under any spa cover warranty.