So, having no choice because I had to have relatively clean steps for my party yesterday, I went ahead and experimented a little. I tested the water yesterday morning and then used about a half a cup to clean 1 step. I waited 4 hours and retested the water - no changes in any results. I proceeded to clean 2 other steps with about 1/2 cup each and retested the water just prior to party at 5pm (about 4 hrs later) - again no changes in readings. There was no swimming at party because the weather was only so-so but everything looked good (had a great time otherwise)! I retested the water again this AM and again no changes:
FC - remained constant at 5 (been running high all week due to other issues)
PH - went from 7.2 to 7.4
TA - remained constant at 110
CYA - remained constant at 110 (running high because of other issues)
Don't no what this means in the long term or whether this could cause any other issues (nor do I plan on trying again) but it certainly helped the steps. It doesn't so much clean like a scrubbing agent, but on contact it turns brown to white like pouring bleach on something. Ben, it would be interesting to hear what your son might think.
Thanks ~ Paul
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