I'm new to this stuff. my hot tub says to test alkalinity first then ph?
I see ph readers you have for sale but nothing about alkalinity. I don't fully understand the relationship between the two.
do you have something for monitoring the water for a hot tub correctly?
Thanks.
I'm new to this stuff. my hot tub says to test alkalinity first then ph? I see ph readers you have for sale but nothing about alkalinity. I don't fully understand the relationship between the two. do you have something for monitoring the water for a hot tub correctly? Thanks.
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