I don't know a whole lot about dwc systems, but my general understanding is a little betterr than yours, so here goes...

Air pumps only pump air. Their purpose is to make sure that your nutrient solution is well aerated - full of millions of tiny air bubbles. Your roots need air just as much as they need water, hence, the air pumps. The air pump attaches to air stones - bubble makers. You have air stones in your individual buckets as well as in your reservoir. The aeration is a vital part of the hydroponic process.

To move water/nute solution, you use a water pump, and gravity.

Memorize the above and you'll know as much as I do about dwc systems. Dayum, it just occurred to me that, if you then learn one more thing, you'll be smarter than me. ...that sucks.

Good luck with your grow! :thumbsup:

PC :smokin:
PharmaCan Reviewed by PharmaCan on . Few Question regarding DWC grow? Hello everyone, i'm trying out my first hydro grow in a DIY DWC system. i have two different systems and question for both. 1. the first set up is using 5 gallon bucket, airpot, hydrotons, and an air pump to oxygenate the reservoir. just so i understand this correctly...i don't have any type of drip system so do i need to make sure that the bottom of the airpot is sitting in water so the wick can take nutrients to the new seedling? if so will the roots not grow into the cotton wick? and Rating: 5