using kalk can be really harmful if you overdose it.
how's the skimmer looks like??maybe it is not working hard enough??
Quote:
Originally Posted by Rogue951
I haven't been checking and I top up with kalk.
It's just run away i assume. I'll let the top up run with plain RO water for a few days and let it drop a bit.
But the test kit could be wrong.
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