I'm flushing...when to change res?

OK, so I'm flushing my mama before I cut her down. Do I change out the res water every night?

Some hydro growers do flush the entire last two weeks. Flushing 3 gallons to every gallon of medium should be suffice...or atleast Jorge thinks so!! LOL

I'm just doing 4 days. Still haven't watched the Jorge vid yet.

Do you have a TDS meter? Check the ppm of the rez after irrigation. If it's quite a bit stronger, then change it, or just add more fresh water.

I run plain water for the last 5 days, with an active hydro system I think any more than that, and you're denying them food when they need it.

HTH

I ve always done a clean water flush for 7-19 days and on occasion the last day 8 hours before harvest ggave the plants watering of orange juice and the flavor gets sucked up in the buds giving a light citrus taste and smell.Some strains take it better then others. I do a 2 to 1 oj to water dilute.

negative. no TDS meter. Guess I'll buy one before the next harvest.