Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: JandS on January 10, 2018, 08:22:16 pm

Title: Check your TDS meters for calibration screw.
Post by: JandS on January 10, 2018, 08:22:16 pm

i bought a new one 6 weeks or so ago and it has been a bit hit and miss then I check the back today and there is no calibration screw so fake/faulty.