Deb, Hach makes a unit called a digital titrator which is pretty accurate for field testing samples for hardness & alkalinity. You can get different strength reagents that will allow you to test higher concentrations quickly & lower concentrations more accurately. I wont say it's as good as the chemist in our lab, but I believe it is accurate enough & I think it would be a better deal for you. Also, it's not expensive at all.
It ain't much of story if you don't have pictures!
