Where does it say how much the 7 pound bucket will make? We just got our order and it seems like it makes more than 8 gallons of supplement.
the "Total Package" definitely seems like the better deal. I totally agree with you on the pumps, its pretty hard not to splash yourself/nearby pets with it. You can save a bunch of money if you cut out the soda ash portion. After you run out of the soda ash you can just make your own by putting baking soda in the oven. costs a LOT less than buying it from them and paying for shipping.
Edit: I did the math. 7 pounds of CaCl pellets will make 7.35 gallons of calcium solution that is 37,000ppm calcium. If you follow the recipe on BRF's website i think it makes it at a lower concentration, but then it will probably make the 8 gallons. (37k ppm is whats made with Randy's two part recipe. Randy being the chemist who created this to begin with)