Do I need to have my spa cover on all the time? May 17, 2018 01:18 Updated Follow Your spa cover should always be on when your spa is not in use. It secures your spa, helps maintain heat and protects the spa’s surface. Related articles Why is my spa cover so heavy? Does a new spa include a lockable spa cover? Do you sell spa cover lifters and how do they work? Pool vs Swim Spa? How much clearance should I leave to put decking around my spa? Comments 0 comments Article is closed for comments.