The best way to find out where air is leaking from your spa tub is to spray the tub with a soapy water solution and watch where bubbles form. That's where the leak is. Pay special attention to the inflation valve. If air is leaking from it, you can tighten the valve with the included wrench. In the event of a defect, the inner removable part of the inflation valve can be purchased from us as a spare part.
How do I find the hole in the spa tub?
How do I find the hole in the spa tub?