FG, recirculating the buckets makes it easier to control the amount of ppm in each bucket as well a the ph, keeping them stable in each bucket...

if your not recirculating then its a big hassle topping off and managing all the buckets.. it's not extremely necessary but I don't know anyone who has made the modifications and not felt like it was the one of the best things they could do. And I also know people who haven't made the mods to the w/f's and are still having troubles...

In my opinion I'd drill out the holes to fit 3/4 inch ebb n flow outlets and daisy chain each bucket together with black tubing, w/ a res, but that's just me...

. Have a look at the W/F dwc club thread it will help you out. I'm currently building a recirc DWC with 10 gallon buckets

hope this helps Farmer Guy

Later D:S5: