Thanks for the heads-up on the lid, it is not a problem I have several. I will put one on tonight. I can easily run my return through a hose; I put a fitting there just no hose.
good man, just being caution, thought id say something, if you have a tap on it even batter

you can fill the pot to flush, very easy and thorough, you know the whole system gets filled and rinsed.
sweet buddy ya in particular im interested in how your garbage can looks on the inside and what is it you have placed in there just a giant pot/netpot filled with perlite? also whats your res look like and how often you pump feed to the plant? cheers man srry for all the questions
by garbage can i think you mean inside pot yeah? it has 4 holes in a cross section around 60mm round each, and yes it's kind of like a net pot but the inside pot is solid like the outside, and houses a 'pot sock' 50 litres are the easy size to come by. the pot sock has small holes on the bottom and the whole sock breathes because it's a light fabric, not really very strong, but handy being it's not going to rot roots, it allows the roots to just follow their natural way along the inner walls of the pot and eventually find their way to the bottom. The pot sock is supposed to make for easy disposal, yeah, once i have been able to lift the entire system out by the sock. Once. The rest have been too heavy and will rip/tear so i just tip it out upside down in a big 75cm x 75cm garbage bin, you may or may not have to remove the roots from underneath the inner pot so you can remove from pot.
I usually have 3 inches of hydroton on the bottom and the rest 100% perlite. This time i used maybe 6-7 inches of hydroton as i was low on perlite and had everything else ready to go, and seeing as the hydroton will only act as the base part of the roots system i think it will be fine for stability, and actually be quite the same as perlite. I would prefer 100% perlite soo far.....it doesn't matter imo.
My res is a 41 litre BLACK UV proof plastic tub, it has the outlet and inlet down the bottom which i'll present a photo of. I feed automatically every 2 hours from a 'pin' timer so i can set multiple times during 1 day to turn on for 15 minute cycles each feeding.
this is the inner pot on the outside ....
This is the res/internals next to the tent....and evap cooler/summer....
going up to the pot to a simple 6-8 nipple feed ring.
An a bit of bud porn from last grow

she was a beautiful sight, soo hard to chop them down when they look like that which i'm sure some of you understand....