There's lots of different methods kinda all depends on how well you can get around your girls when there full size .......anything works as long as there getting water obviously. Also if your guna use city pressure or have room for a tank for a gravity type set up there's literally a ton of ways though lol. I like my tank .....it's all gravity fed But the tank fills off my normal cold water plumbing I like it cause I can mix my nutes all at once and just water my girls by turning a valve. Same with my outdoor big ass tanks with omitters Lol. Lazy rite but it works well for me Good luck