Track number of litres used in water bottle

General lounge
1

In the hose we have a couple of Lifestraw Go water filter bottles, it has a fibre membrane filter which is good for up to 4000l and a carbon capsule good for up to 200l.

More as a curiosity thing, I am wondering what’s the easiest way to track how much water goes in and out other than do it manually.

Process has to be super simple and reliable and waterproof as I regularly drop the bottle and as small and inconspicuous as possible.

Any suggestions?

2

I don’t understand your setup exactly. You mention you have a hose that you use to fill them, so perhaps just add a flowmeter inline such as this one:

https://www.aliexpress.com/item/G1-2inch-DN15-Transparent-Water-Flow-Meter-Flow-Meter-Hall-Flow-Sensor-Indicator-Counter-Full-Copper/32848584950.html

This would obviously require some DIY arduino electronics or similar. There are also flow meters on AliExpress with integrated displays that wouldn’t require any additional electronics.

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