Yeah you must run it 24/7 or else your res will develop algae from the water being stagnant & your roots will also start to rot. The whole thing with DWC is to continuously provide oxygen to the roots for continuos growth of the plants.

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the air stone will run all the time right? how often will you run the drip?

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http://www.rollitup.org/grow-journal...t-journal.html

Some growers run their drip for 15 minutes every 3 hours, but as the plant gets bigger the schedule might increase. Check out a thread from UNITY. He was using GH's waterfarm which is a drip system.

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thanks for the link southfloridasean, i have a question why the huge price diff between magdrive and ecoplus? is it two diff brands, or two diff TYPES of pumps? ecoplus seems to have more GPH per dollar.

Well the magdrive are excellent pumps but a pump is a pump. The ecoplus is also good but I guess the magdrive satisfies the industry standard. There is nothing wrong with the ecoplus, they can be used & will suffice until one can afford the magdrive.

__________________
In the Sun
The Universe Has Gotten Me This Far, May As Well Keep Going!!