I've been surfing around on pool supply sites today and found Cyanuric Acid Remover/Reducer! I didn't realize such a thing existed. After reading all the posts on this site for a couple of years now I was under the impression the only way to remove CYA was the "drain & refill" method. Anyone ever used this? Any thoughts? Interestingly enough, it was listed under "commercial pool chemicals" and not residential! I found it on two different sites, neither lists what's in it, but it's about $50 a gallon. I REALLY wonder what's in it...
This is what it says:
  • Quickly reduce the level of cyanuric acid to comply with local codes, and avoid costly water problems.
  • Eliminate the time consuming process of draining and re-filling the pool.
  • Will not affect the water balance chemistry when used as recommended.
  • Pool can be open again only 15 minutes after application.
  • Dosage: One gallon of Cyanuric Acid Remover per 10,000 gallons of pool water, reduces cyanuric acid by 30 - 50 ppm.