I've had my HS Envoy for about 18 months now. In the past 6 months I've found two approximately half inch plastic screws/plugs in my spa. They are flat head capped (no philips or flat head screw groove - just a flat smooth plastic head), and partially threaded, which makes them appear to be a threaded plug. I found one in my filter compartment, and the other was on the tub floor. I can't find where they came from upon a visual inspection, but they definitely came from inside the spa.
Any ideas? I have a picture but don't know how to post it.
