How long do water pump stay on in RDWC??!!

Im thinking about getting a RDWC. I wanted to know how long do I have to leave water pump on? And does it change at anytime during flowering?

24 hrs
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Are there any quick tips u can pass down to a newbie on RDWC??

Read more. study DWC before you attempt RDWC.

youtube has some good videos on how to set up the dwc set up