Sounds like you have a clay suspension problem. The most dye would do for clarity is by possibly reducing the strength of your blooms, which wont increase visibility very much, maybe 4-6 inches.
I personally like to keep mine around 16-24". But if you want it a lot clearer, you're probably going to need a floculant to make the clay sink. I've never had an issue with that so I'm not much help other than what I've read here. Hydrated lime and alum will do it, but you have to be careful with it.
.10 surface acre pond, 10.5 foot deep. SW LA. The epitome of a mutt pond. BG, LMB, GSF, RES, BH, Warmouth, Longear Sunfish, Gambusia,Mud Minnows, Crappie, and now shiners!!...I subscribe!!