0.4 pH swing...bad?

[Son Of Skyline]

Thanks Doug. I'm currently not dripping kalk when the tank lights are on. I won't worry too much about it then.

Originally Posted by Doug Lowey

I dont think its somethin to worry to much about. I would be curious why such a large swing though.

The night reading seems closer to normal, but thats a big climb in the day. Do you dose in the day as well?