Printable View
ag, vinyl,21x52 round aprox 9800 gallons, well water, 100 lb sand filter w 1/2 hp pump
my water is clean but it just doesn't have the sparkle. it seems a little dull. my chemical levels seem ok. I just backwashed my sand filter
shocked with liquid shock from the local pool store yesterday morn because of rain.
all I have is aqua test, test strips at the moment so readings are close
fc-10 ppm
cya-30 to 50
ph-7.8
ta-100
ch-350
Your pH is too high for your TA + CH; it could 'tip' into precipitating calcium carbonate easily. Do NOT add any more calcium; do NOT use cal hypo to chlorinate.
Make sure your sand filter is full -- it it WAS full, and you haven't been losing small amounts of sand when you backwash, it probably still is full.
Make sure your chlorine levels are staying consistently at 3 ppm or higher. Low chlorine + shocking after several days = hazy water that lasts for days, depending on your filter. For crystal clear water, you need appropriate chlorine levels ALL the time.
I have a very hard well so my ch readings are very high coming from the hose when I have to add make up water. I am using liquid shock from the pool store. it is cheaper than bleach from walmart and it has a higher sodium hypochlorite %. the water is crystal clear now since I shocked it but the fc level is off the high end of the chart and im concerned about chemical burns. I will wait a day or so before I use the pool.
after brushing I still see green algie growth in spots around the bottom of the pool they just reappear randomly
Bleach doesn't burn people. In very high concentration (> 50,000 ppm) it will remove the top layer of skin eventually. But, I've encountered commercial kiddie pools where the chemicals were mishandled, and very high chlorine levels were accidentally maintained . . . and no one even noticed. In one case, a high use infant swim pool was used for nearly a week with levels of 100 - 200 ppm, but no burns, no red skin, and no complaints. (I did drain and refill the pool, to correct the problem once I discovered it.)
Read the Best Guess chart, linked in my signature, for a more complete explanation . . . and so you'll understand why you may NEED to maintain those high FC levels till ALL the algae is gone. Then, go order a K2006 kit from Amazon (link also in my signature) so you can actually measure your pool levels accurately.
Good luck!
im no longer concerned about the elevated ta reading it doesn't seem to make a difference with a vinyl liner pool. im maintaining a slightly higher fc level with liquid chlorine now and the pool looks great the ph seems to have stabilized as well. i guess with all the rain i just needed a little patience.