5 bucks a pop if you buy 24 or more...thats a good deal. too bad they're 5 gallon buckets...Sure they will work just fine though.
You can find uniseals on the cheep here:i cant find them cheap anywhere bro. what do you search?
I was gonna say this myself...I built an 8 site UC using 5gal buckets plumbed with 1.5" pvc and uniseals. I use a 350 gph pump and have no flow issues.I would break it down into 4 individual 12 bucket systems, if you are dead set on the 1.5" PVC....