I was taking the temperature at Tooting BEC Lido when someone asked “Do you log your readings anywhere?”. Except for my Strava activity descriptions, I didn't.
Wouldn't that be a good idea? So, I got thinking and talking to people. Within days, the idea became live readings for pools and lakes so that nobody had to take a reading or share a log and you'd know what you're in for before leaving your cosy home.
This wasn't done anywhere. I found that some locations have set up bespoke systems. Others did show water temperature on their websites, but with methods that require manual input - often with someone to be on site. It was complicated.
It was time to make it simple.