Yeah, I guess it's like "no bypass" filtration... Makes good hype but...
I don't suggest by ANY means that this is a MAJOR issue in EVERY spa but the reality is that anything that is heavier than water will sit in the footwell. Ask anyone who's ever got sand in their spa. This, without even mentioning the additional volume of water that is being filtered because of it...
Also, any idea how many of those hand held "spa vacs" are sold every year? When I was with BC, we sold about 75 per year. That's 1 dealer... Obviously, there's a "few" people who might not agree with the 2 (two) of you guys...
Steve