I also want to add that I have always used airstones in the reservoirs and it really helps with the root density. I have a main reservoir but don't use due to space limitations. Maybe when I change grow locations I will be able to put it all to good use. As for the salt buildup on the rings, the actually drip holes are working fine and I usually take a nylon scrub pad and scrub the "grime" off the rings. Thanks for your comments and more updates to come!

SAP:thumbsup: