▲ 14 r/HVAC
Can i just use regular litmus paper and change it out each time? Or blow a deminimus spurt onto a litmus paper?
u/Gloomy_Astronaut8954 — 16 days ago
u/Gloomy_Astronaut8954
Can i just use regular litmus paper and change it out each time? Or blow a deminimus spurt onto a litmus paper?