pH adjustment with dry products

When I first bought a basic pH adjustment kit from General Hydroponics, it came with two small bottles of liquid adjusters. One to raise pH (pH UP) and one to lower pH (pH DOWN). Since I need to raise pH far more often than I need to lower it, I ran out of pH UP while I still have a lot of pH DOWN left.

As you may know, I'm a fan of using dry products where available. They're usually cheaper than their liquid counterparts and it's easy to keep a lot on-hand. Also, you're not paying to ship a bunch of water around when you purchase dry products. So, I bought a four pound box of pH UP at a local hydroponics store for $20.

By my best estimation, the dry pH UP product is about four times the strength of the same volume of the liquid version. That is to say, I use 1/2 teaspoon of the dry product to affect the same change that required 2 full teaspoons of liquid.

One downside is that the dry product seems to be quite a bit more reluctant to join the solution than the liquid version- quite a bit more mixing is required. This is an acceptable tradeoff for me given the large quantity of dry product that I get for the money.