
Spent years getting my pool chemistry wrong before I finally built something that does the maths properly
Pool ownership for me started with a lot of green water, wasted chemicals, and generic advice that never quite worked for my actual pool.
"Add a capful" doesn't mean much if you don't know what a capful does in a 45,000L pool versus a 10,000L one. And nobody ever told me the order mattered until I'd already ruined a few treatments by getting it backwards.
Once I'd actually figured it out, I built AquaCheck — you put in your pool's real volume and your test readings, it works out exactly what's out of range and exactly how much to add, in the right order. Free, no account, runs in the browser, also just went live on the Play Store.
Would love for people here to try it and pick holes in it: https://play.google.com/store/apps/details?id=com.aquacheckapp.app. Genuinely happy to talk through anyone's chemistry questions in the comments too.