I was wondering about 'flushing'?
I have read about it, know the whys and how to, but I cannot find anywhere where it says when you should flush it.
All my plants get distilled or water from the de-humidifier (they REALLY like the de-humidifier water) so is it necessary for me to flush them?
I don't have any plans to do it in the near future, I was just wondering when you know they need it. Or is it a maintance thing..
thanks in advance.