I just got my FAS-DPD kit yesterday :-D Had to order it took a week, got "the pool guy" deal from a cool employee $43.00 I have some green alge growing on rough edges and under a few blisters (pool needs to be replastered) I'm super clorinating it up to at least 30ppm and am testing twice a day so I'm in the same boat as you, I'm using alot of drops from the R-0871 Here is what I found tonight
Leslies:
http://www.lesliespool.com/browse/Home/ ... 30/I/81348
FAS-DPD Titrating Reagent, .75 oz. $8.49
FAS-DPD Titrating Reagent, 2 oz. $12.89
Amazon:
http://www.amazon.com/Taylor-FAS-DPD-Ti ... 689&sr=8-2
Taylor FAS-DPD Titrating Reagent (Chlorine) .75 oz R-0871-A $8.35
Taylor FAS-DPD Titrating Reagent (Chlorine) 2 oz R-0871-C $10.49
I'll see if they will give me a deal on a reagent, usually I have to buy enough of somthing to make it look like a pool guy purchase (whole bucket of shock, 7 boxes of 2 gallon clorine jugs)ect..