Same here on needing to lift for draining/refill every week, that was my biggest issue on trying to find something on how to make my scrog screen. I had been racking my brain for days trying to figure out how I could connect it to the lid and still be able to refill. I actually even set a bucket next to my current bucket, lift the plant out(yes, even a 3.5' tall plant with its 1' root ball, very flimsy) and put it in the empty bucket while i spray out the reservoir for cleansing purpose and refill. This will work perfect, can't wait to see what results I get. I got the PVC today, couldn't find the 90 degree T connectors at my local hardware store but I made the main frame with just regular 90 degrees to see sizing and drill holes for net and it's very light so it'll be nice n maneuverable(I'm only going with a 24"x18" net).
Do you do any topping or just LST?