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Original Lowryder #12
Guest
Yeah those work in a pinch but it leaves a bit up to subjection. I would get a decent pH meter and maybe even a PPM/EC meter. I use BlueLab ones and they're great. A little pricey but they calibrate up each time with no issues and have lasted me years so far.This is my method of checking ph. With a pool water tester. A bit crude and also a bit of a guess as you can see by the picture. Maybe it's not good enough?