09-06-2007, 04:08 AM
I'm having much better luck with citric acid than with lime. It seems to be just as effective and doesn't require aggressive agitation to keep it from settling out. Unless the recirculation system in your spray rig is a butt kicker, there's quite a bit of waisted lime. Acid can be mixed in advance (like during daylight) and stays in suspension. It isn't as messy and leaves no visible residue. It also doesn't seize the pump as lime did. It's more expensive at $40 a bag, but I only spray about every three months, and half a bag will do my place.