HotTubWorks.com jacuzzi/hottub covers may have chemical contaminants in foam that will burn the vinyl liner. This is a built in defect HotTubWorks.com will not replace under warranty either. I have contacted them 4 times with photo's and descriptions of damages caused on their covers and they will not honor a warranty claim. last email to HotTubWorks.com in reply and rebuttal to their accusations... When I ordered the 'premium' cover from HotTubWorks.com I thought I was dealing with a reputable company who would stand... read full review »