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Avoid troublesome algae treatments or costly surface and equipment damage.

The Sutro Water Monitor automatically tests your water 3x/day and gives you exact instructions on how to treat your water so that your pool or spa is always ready.

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    An app that tells you exactly what chemicals to add to your pool and when!

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    Don't know what chemicals to add or when? Sutro will tell you!

    With Sutro you’ll save time, cost and effort while keeping your pool chemicals in balance, even if you don’t know what you are doing, the Sutro app will help you out telling you what to do.