The Test Kit of The 21st Century

Sutro floats in your pool and monitors your water quality 24/7. Meanwhile, Sutro's app delivers prompt notifications and instructions as needed to keep your pool or spa healthy.

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Pool Tips & Tricks

Guide to Closing Your Pool: Part 1 - The Prep: What to do 1 week before
STEP 1: BALANCE YOUR WATER     We know, it’s hard to say goodbye to summer. The warm sun on your skin, the pool parties...
Press Release: Sutro to Showcase Game-Changing Water Technology at SXSW Eco 2016
  Sutro has been selected to pitch at 2016 SXSW Eco Startup Showcase where they will present game changing water monitoring sensor technology. We’ve been...
Olympic Green Pool - The real story surfaces
  Quick Recap 2016 Olympics#rio2016Green diving poolNo goodCatch my first email about the Olympic pool turning green here.  What’s the latest update? On August 13th...
Pool Test Strip Inventor, Mark Stephenson, Strikes Again With Sutro
SAN FRANCISCO, CALIFORNIA, UNITED STATES, August 16, 2016 /-- Previous water technologies area manager Mark Stephenson will be joining Sutro, a cutting-edge water monitoring tech...
The Rio Olympic pool - whats going on? Sutro Investigates.
Happy Friday! Many of you probably heard about the green diving pool at the Olympics. A quick dive into what might have happened. What did...