troubleshooting alkalinity

[albert_dao]

Constant drip or topoff is the norm for kalk.

[Farrmanchu]

I had a Deep Six Hydrometer. Found it to be three points off, i.e read 1.018, and it was actually 1.021. Taking that into account, it worked, until it got bumped or shaken, then it would change. My advice is to check it against a Refractometer, so you know which way it's out and how much, then use it gently, rinse carefully, and keep it in a safe place. A few times a year, recheck it with a refractometer. If that floating needle thing in the Hydrometer bounces around too much, it's gonna change the reading.