Water is a living organism

Your pool water is a living environment, it is continuously evolving. A healthy pool is a fine balance between a clear pool or a green pool. And if you’ve been there, you know.

The same as the EPA

Sutro has the most advanced technology on the market, and how do we do that?  Simple, we use the same reagents that's used at your pool store - a tried and trusted method for the last 100 years and is used by the EPA.

A complex chain of chemistry

Theres a complex chain of micropumps, robotics, lead screws, and syringes that add up to give you that reading - and we take it a step further by turning that into something that you can act upon in a simple way. We take that a step further, and give you a chemical recommendation that tells you what to do and when to do it (with the chemicals you already have in your shed).

It’s super small

Where it gets complex is we just make it super small. It takes a lot of internal complexity to make taking a water measurement a reality. We use our partner LaMotte’s reagents to ensure that we have the gold standard for water testing.

Computer vision and how we measure water chemistry

Our chemistry is done via a clear flow cell and a cartridge full of reagents. If you have ever used a liquid water test kit, then you know what we’re doing -- the same way that you take a sample of water, drop color in the cell, mix it up, and then compare colors - is the same thing we do... Only on a microscopic level. For us, micro means 1/50th the volume of water you would use in a normal test kit. It’s a simple process made complex by all the little things that could go wrong like bubbles, dirt, scratched flow cells, etc.

Water is a living organism

Your pool water is a living environment, it is continuously evolving. A healthy pool is a fine balance between a clear pool or a green pool. And if you’ve been there, you know.

It’s super small

Where it gets complex is we just make it super small. It takes a lot of internal complexity to make taking a water measurement a reality. We use our partner LaMotte’s reagents to ensure that we have the gold standard for water testing.

The same as the EPA

Sutro has the most advanced technology on the market, and how do we do that?  Simple, we use the same reagents that's used at your pool store - a tried and trusted method for the last 100 years and is used by the EPA.

A complex chain of chemistry

Theres a complex chain of micropumps, robotics, lead screws, and syringes that add up to give you that reading - and we take it a step further by turning that into something that you can act upon in a simple way. We take that a step further, and give you a chemical recommendation that tells you what to do and when to do it (with the chemicals you already have in your shed).

Computer vision and how we measure water chemistry

Our chemistry is done via a clear flow cell and a cartridge full of reagents. If you have ever used a liquid water test kit, then you know what we’re doing -- the same way that you take a sample of water, drop color in the cell, mix it up, and then compare colors - is the same thing we do... Only on a microscopic level. For us, micro means 1/50th the volume of water you would use in a normal test kit. It’s a simple process made complex by all the little things that could go wrong like bubbles, dirt, scratched flow cells, etc.

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Your pool’s dashboard

The Sutro App sends you quick easy readings 3 times a day so you have daily knowledge of your exact pool chemistry without ever getting your hands (and arms!) wet.

Your pool’s dashboard

The Sutro App sends you quick easy readings 3 times a day so you have daily knowledge of your exact pool chemistry without ever getting your hands (and arms!) wet.

Your pool’s dashboard

The Sutro App sends you quick easy readings 3 times a day so you have daily knowledge of your exact pool chemistry without ever getting your hands (and arms!) wet.