Install a water level indicator system with float switch sensors inside your rooftop tank, connected to an LED indicator panel inside your house via a cable. This setup will show the water level in 25% intervals (0%, 25%, 50%, 75%, 100%). It provides a convenient way to monitor water levels without climbing to the roof. You can check more details here from

<a href="https://roofrestore5x.com">https://roofrestore5x.com</a>
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Your project is super amazing. To maintain water temperature is essential when you are using tankless water heater. Setting of temperature depends on the inlet water temperature and the temperature you want. To know more about this, read this article. https://waterguru101.com/best-temperature-for-tankless-water-heater/

this is great idea I am also working on the very similar project you can see here https://www.rosystemguides.com/

Wow! It's an interesting project, You can see here my project https://prowatersoftener.com/

Use non-contact ultrasonic sensor. Display level on a web page on your smartphone.

https://hackaday.io/project/165664-zero-municipal-water-toilet

Im purchasing an older RV that I plan on geeking up and they sell tank monitors that come with a 2 wire stick to the outside of the tank sensor strips. Check out SeeLevel II. You might be able to use the sensors or whole system. Its only 299 for the system and it can hook up to LP sensor to monitor LP gas tank. The sensors are also very cost effective.

It's an interesting project, in my previous job at a research center I met some people working on a similar polymer based sensor for monitoring moisture in great lengths of ground. Seeing the sensor in your link seems like something very similar.

What's your favorite water monitor so far?

I made my project mainly thinking to just solve a problem in my home cheaply, but I do plan on making better versions in the near future

That's a fascinating way of solving your water problems! As you may already know, I too am interested in monitoring my water. One of the many affordable water level sensor that I have searched out for can be found here: http://vegetronix.com/Products/AquaPlumb/

This one interests me, for it supposedly works in any liquid not just water. It also is supposed to give exact measurements as to what the level of the water is.

I would love to hear your thoughts on the various applications of this sensor!

Hope you found this interesting and useful!