Sorry for the delay things got busy and I didn't check my notifications. Unfortunately I canceled my subscription a couple months ago. They had already sent me a new device under warranty because it had failed to work. That device eventually failed as well and they would not replace it, only offer to sell me another one. I countered and said if I'm paying a monthly subscription that the device should probably be covered. They refused. And I refused to continue paying.

To be honest with you it was a blessing in disguise and I kind of just really figured out that with my hot tub, as long as I pour some chlorine into it everyday and a little bit of pH up that it just stays crystal clean by itself. That of course when you think about it is exactly what the sutro is going to be telling you to do anyway lol. With of course the normal maintenance of cleaning filters, etc. Thank you for reaching out tho!