First post - thanks in advance. I hope the pictures work, if please let me know.
Good afternoon, troller here that has learned immensely from the site and for a while had gotten confident maintaining my pool. Opened the pool for the first time in May (new home owner of lagoon) after receiving TF-100 and within a few weeks actually saw that the pool came with a main drain Eventually the water cleared, albeit never crystal clear, but the sides, bottom and the dirt on the bottom were clearly visible for several weeks.
Don't worry, that white stuff is 100% metals free pool filler.
Between the pollen, dirt, etc. the water has never been sparkling, mostly dull. I tried the DE, which didn't seem to impact the clarity - pollen was substantial this year. So I opened the filter up for a deep clean and realized I was missing sand. I added ~75# of sand to "top off" the filter a few weeks ago, pressure seemed to be 1# lower (hovering ~20# vs. 21#) than before. This was about 20% of 350# required. Feeling over-confident with my new "understanding," we added 1 quart of Utikem Clarifier over a week-10 days with little results.
Striving for perfection... July 2, I added MA to bring PH down to 7.2 from 7.8 prepping to add borates eventually. Late July 3 a slight green tint was starting to develop - I immediately raised FC to 12. Then the morning of July 4, I turned on the heater, checked chemicals, etc. and left for a parade only to return to the heater having shutoff and the water showing a slight green tint. Expecting guests (free aeration to raise PH) I let FC fall to 7 ppm but the color was slightly more obvious (see pic). Test results and pics are below - basically I am confounded between this being algae or copper. Possibly due to a failed heater, time/schedule has not allowed to delve into that yet. Pool color and clarity have only gotten worse since that while FC levels have remained high (probably too high, likely problematic on it's own -corrosion?).
July 5, 2014
July 6, 2014
July 7, 2014
I have concern whether this is organic or metals. At this point I can not tell if slamming is helping or hurting. I am likely going to come down to normal FC and recheck PH to be sure it is not over 7.8. Btw, I know my CYA is low and have been maintain shock levels with trichlor tabs. Otherwise bleach is the only chlorine source.