Cheapest source for muriatic acid?

[cygnusecks]

If you find yourself adding lots of muriatic acid because you have a large pH rise, you might consider significantly lowering your TA level to at least 80 if not lower (but not lower than 50).

Richard

What? I thought if you lower your Alk, your pH will be able to move much more easily, and that higher TA means pH won't move so much.