It was grubby cuz harvest day, and because the COB LED modules were so cold they were raining condensation on the floor.Man you need to clean that floor tty
Constant recirculation through waterfalls in every tubsite works very well.
I got my homemade UC up and running a while ago. Been lazy about posting. There's now a 600w MH over them. One thing I learned about this process that anyone making their own should know.. 
The guys at Home dePot actually used the term chemical welding when describing how the adhesive system worked. I used it in my chiller system just the other day.View attachment 4010525 View attachment 4010523 I got my homemade UC up and running a while ago. Been lazy about posting. There's now a 600w MH over them. One thing I learned about this process that anyone making their own should know..
The glue used for PVC and ABS is not fucking around. It will soften the materials being used temporarily and actually is more like a weld when it's done. ABS plastic uses different glue and glueing ABS to PVC requires a special glue called transition cement.
I learned the last bit AFTER I had started gluing stuff so I used PVC cement on everything and it seems to be holding. i would recommend anyone else purchase the correct glue for materials being used.
The pumps I have come with these cool little kits with a Venturi pump-outlet fitting and some air hose and little valve to control air flow. I want to use them somewhere I just think it's a great idea. IF they would actually increase DO any.
Play with it, by all means! I don't see how it would hurt anything, as long as there's adequate water circulation throughout the system.
RDWC can be anything from one tub on up. Let me know if I can be of assistance.
Ya that's awesome. I really wanted to find a way to break apart or expand the system at the 2" pvc. There's quick connect style fittings at that size but pricey and bulky and how often am I gonna break it down so I skimped on that idea - I wasn't even sure at first if this was gonna work. Now that it is working I'm gonna build an identical UC for my flower room soon. That way lids or net pots can be flipped into flowering conveniently. It's all a work in progress.
I put a lot of thought into making everything as modular and easy to break down as possible. Eventually I had 6 systems with 6 tubsites each, and all parts were fully interchangeable.
It looks like there was some leakage going on in general but that also looks like a concrete floor where slow leaks may not matter. I'm growing on the second floor and don't want to deal with "why is the ceiling dripping?!?!" Lol so leak prevention is crucial here. As little flexible hose and barbed fittings as possible I like solid, cemented plastic.
Use slip bulkheads instead of barbed then
I did use slip bulkheads. No leaks whatsoever.
Sorry I didnt see that partI did use slip bulkheads. No leaks whatsoever.
If you had an epicenter with a pump in it that pumps to a manifold to a top feed waterfall this wouldnt be an issue.
The supply lines are pressurised by the pump so there isn't an issue. As long as the pump flows enough to supply all the waterfalls it's good. The pump sits in the control bucket and the waterfall fittings are maybe 15" above that, so head height isn't really an issue. The supply lines are on the floor for convenience, harder to trip over them.
They're yellow hoses. They were what the store had, apparently they got surplus from someplace. Not a sleeve.
My RDWC wasn't leaking, the LED modules were so cold they were condensing water from the growroom! It took a lil while to figure out how to catch it all.