High CYA levels, algae and pool draining.
mverga
10 years ago
Featured Answer
Sort by:Oldest
Comments (6)
muddy_water
10 years agoMiaOKC
10 years agoRelated Discussions
drain & fill to reduce CYA
Comments (9)The testing was a combination. Before I discovered this site (and TFP) I had my water tested at pool stores or I used the strips. (111 was a pool stealer number). I bought a cheapy HTH Walmart 6 way kit and tested the CYA a couple of days ago and it was about 70. My brain is fried so I can't remember exactly what it was but I remember being okay with it. So it was 60 or 70. It could still be lower, but I'm using liquid chlorine until splash out and rainwater/hose refill continues to lower it. Water here is so expensive, I'd hate to keep refilling it unless I have to. BTW, the pool stealer told me yesterday that my CH was 70, I tested it last night and got a reading of 460. The pool stealer did not test for CYA. Isn't that funny?! That's been my biggest problem this year, trying to lower it, because of bad info from this same pool stealer. He told me before "not to worry" about CYA. He also sold me this skimmer cover so I don't have to drain below the return for winterizing. He never bothered to tell me that over time our use of tri-chlor in the "pool frog" system (not using anymore) would build up the CYA and that previous drainings had kept it reasonable. Thanks for nothing I say! Good luck!...See MoreHigh nitrates...drain? tips/helps
Comments (4)You didn't finish shocking. Something is in the water. Anytime free chlorine combines with something, be it bio-badies or tanning lotions, it becomes inert. Nitrates mean zilch. Killing the algae before it can eat solves any issue there. If its a bio-badie, the time spent draining and refilling will give the bio-badies the opportunity to reproduce. If you have a salt cell, your CYA is perfect at 80. If you are tablet fed and not in the Southern latitudes, then diluting will be needed to reduce the CYA level. With your current level of CYA, bring the FC level to about 40 and hold it there until you can pass the Overnight Chlorine Loss Test. If you can take the calcium, cal-hypo can be used. I prefer using bleach (6%) or chlorinating liquid (12%). Scott...See Morecya increased
Comments (5)Also, CYA is a turbidity test so anything else in the water can affect the results but it has to be pretty bad. This would include algae or just cloudy water. Is the water clear and can you see to the bottom of the pool? One way to tell for sure is fill the view tube with plain pool water and see if you can see the dot. If not, try running the water through a coffee filter before adding the reagent. CYA is dissolved and smaller than the filter so it won't be filtered out but if there is anything else in the water, it might get filtered out....See MoreDo we need to drain our pool...
Comments (4)Do you have a salt cell? Salt would explain the high TDS. Most salt cells want this level of salt. Some peeps also add salt to non salt cell equipped to relieve dry skin. Check for salt content before draining. Draining 1/2 the pool may be reasonable. If you have a liner or fiberglass pool, drain no more than 1/3 to 1/4 of the water followed by immediate refill. Gunite can go to 1/2. Repeat the water test in a couple days. Repeat procedure till the water's tests show proper levels. Watch where you send your discharged water. Don't do it when the water table is high. It can create problems like pop ups and liner float. Any idea how the calcium level got to 1000? How many gallons is the pool? Use either muratic acid or bisulfate (powderedpH Down) to lower bothe the alk and pH. Get your pool fill water tested too....See Moremverga
10 years agokeithw
10 years agorandy427
10 years ago
Related Stories
LANDSCAPE DESIGNRoll With Boulders for High Landscape Impact
Go for big-league drama outdoors with oversize rocks in gardens, around pools and on patios
Full StoryLIGHTINGThe Lowdown on High-Efficiency LED Lighting
Learn about LED tapes, ropes, pucks and more to create a flexible and energy-efficient lighting design that looks great
Full StoryLANDSCAPE DESIGNGarden Levels Transform a Steep Slope in Australia
From unusable to incredible, this outdoor area now has tumbled travertine, water features and mod greenery
Full StoryGARDENING AND LANDSCAPINGPool-Friendly Patio Materials
Get a pool patio to match your style at a price that doesn't leave you high and dry
Full StoryGREAT HOME PROJECTSHow to Replaster (or Remodel) Your Pool
Have an old pool? It could be time to update the plaster, landscaping and more for a pool that works swimmingly with your current style
Full StoryGARDENING AND LANDSCAPINGHow to Make a Pond
You can make an outdoor fish paradise of your own, for less than you might think. But you'll need this expert design wisdom
Full StoryLANDSCAPE DESIGNSecrets of a Successful Water Garden
Relax. Having a water garden is much easier once you understand the basics
Full StoryLANDSCAPE DESIGNNatural Swimming Pools: More Beauty, No Chemicals
Keep your skin and the environment healthy with a pool that cleans itself, naturally
Full StoryGARDENING AND LANDSCAPING12 Naturally Beautiful Hot Tubs
Prefer a no-plastic look for your patio or yard? Wood, stone and concrete make these hot tubs fit right in with nature
Full Story
randy427