Sutro 4+

I purchased his product after comparison of a number of smart pool water monitoring systems, and decided to go with this one based on ease-of-use and the fact that it uses actual reagents for measuring various chemistry parameters. The device was a little complicated to set up the Wi-Fi connection, although this turned out to be an issue with my own iPhone as opposed to the Sutro app. However, customer service was extremely helpful and very attentive to my issues and got the problem sorted out very quickly. The device has worked perfectly since placing it in my pool, and I have found that the Wi-Fi hotspot within the charging station is quite powerful. I would highly recommend this device as it has proved quite accurate as compared to conventional water chemistry test kits. My only issue was that the testing vessel which floats in your pool was coming into contact with my automatic pool cover and I will be addressing that shortly by attaching the canister to the sidewall of the pool. Overall, I don’t think that anyone would be disappointed with this device and I highly recommend!

I have been a Sutro user since November 2023 and use it in a 1300 gallon swim spa. Early on, prior to getting Sutro, I used test strips to check the chemistry. What was lacking when I read the results was how much of what chemical was needed to get to the proper balance. With Sutro, it tells me what is needed and how much of what chemical to add. Sure, you can take a water sample to a national pool supply store and get results and recommendations but at what travel cost and your time? Full disclosure: on occasion, I have taken a sample to get tested and the results are very similar to the three that are tested by Sutro. The constant monitoring showing results three times a day, makes for peace of mind when ready to enjoy the next swim. The team at Sutro has been amazing in their customer support. As with any technology there will be some issues and Sutro is not exempt. My infrequent issues have all been resolved in a professional and timely manner.

There no way to describe that feeling you get when you wake up in the morning and check your pool levels on your phone. I don’t know about you, but those test strips stress me out! Always second guessing myself on which color it matches up closest to. With my Sutro, I can see when the levels start trending a certain way and I can proactively add what’s needed before the device tells me to. It’s kinda crazy how Sutro knows exactly what to add to get the numbers just right. My pool is approximately 37,000 gallons and if Sutro says to add 3.5 cups of acid, I add it. Sure enough, the next test shows it perfectly balanced! When I take my water to the pool store to verify, the numbers are super close!