I've tried searching the forum up and down for this DIY by leadsled. I then searched on Google.. I found it, but the link is broken? Bummed I can’t find that. Anyways, I’m going to be doing drain to waste for 20 plants in 5 gal coco. Need help sizing a reservoir, lines, and pump. I was hand watering about 20 gallons every other day in flower. How do i make sure I don’t flood my room? Table will be lower then the reservoir. Can I make a T coming off pump and plumb it back into the reservoir to regulate PSI and mix nutrients? I have lots of questions. I’ll try to remember them. Thanks in advance!