how often should u change water in dwc

[redbeard]

Recirculating dwc 30 gallons Total 3 totes . 2 weeks into flower using floratrio calmag and hydraguard. Water temp constant 68

[BuddMarsh]

I change the water every 2 weeks in veg. and every week in Flower. Hope this helps.

[Grinder]

I do the same.

[DW2]

Howdy redbeard, I'm starting my sixth DWC grow. I completely drain and refill with new pH'ed water and nutrients each week. I top off at mid week with pH'ed water only. I'm growing in two ten gallon totes (six gallon usable capacity) with six 3 3/4 inch net pots each, but usually only have one to three plants in each reservoir at a time.
Good luck with Your grow.

[pacecar56]

I PH every 2 days and change out water every 7 days. Using GH series w/ Armor /Si, Cal Magic, Rapid starter, Hydrogard, floralicsous Plus and Flora Nector.

[gbauto]

Running a RDWC system w/20 gal total volume. GH trio, hydrogard and cal/mag during bloom-I change the system every two weeks and allow the pH to range from 5.4 in the 1st week and then bump it with some pHup to finish at 6.5 seems to keep things happy

[redbeard]

We had planned to changed every 2 in veg but ended up being more cause of da rootrot. I had my clones in dirt for another grow in doing. Had some extras and my brother wanted to get started so we did the dwc. So anyways 2 weeks in flower be changing ever week had to get nutes. Hydro shop dude said with the 30 gals I could go 2 or 3 week just wondered what other thumbs was doing .thnx