The Spruce on MSN1y
How to Lower the Alkalinity In Your Hot Tub in 3 Steps
When you’re doing your weekly hot tub water testing, alkalinity is one of the chemicals you check, along with chlorine and pH ...
Hackaday1y
ESP32 Keeps Track Of Hot Tub’s Vital Signs
Like swimming pools, hot tubs need regular monitoring to ensure their water stays clean and clear. An average person might take a water quality reading once or twice a week using test strips ...