Opened our pool on Sunday to a real mess. Looked like egg drop soup clinging to the walls, floor, stairs, everything, in some places up to 3/4" thick. Added our usual 3 lb. 74% shock and 2 qt. algaecide, saw no FC reading. Added 4 more lbs. shock with no change. Used test strips from 2 diff. sources with the no diff. in results. Monday added 12 more lbs., 3 at a time, with no change. I need to mention that, when adding the shock directly to the pool, it would sink partly, then foam up like Alka-Seltzer, leaving a "head" over the surface of the pool. A visit to the pool store today yielded an educated guess: the owner said that the winter was not cold enough to kill many organisms in the water, and we needed to keep adding shock 5 lb. at a time until we get a reading. Another 12 lb. of 74%, plus 5 gal. of 12.5% liquid and 12 lb. 47% shock, and still no change.
Pool is 16X32 IG vinyl with DE filter (that we've backwashed 5X in the past 2 days), have owned the pool for 17 years and never had to do more than brush away a little algae in the spring and use our Leslie's start-up kit. We have brushed a number of times and vacuumed debris off the bottom directly to waste to get rid of the crud. It now looks not so slimy but I can't see the bottom due to cloudiness. Numbers are as follows:
Total Alk: approx. 120
CYA: approx. 25-30
I hope that's enough info to get the help we need -- and soon, before it gets worse. We can't afford to add $100 a day in chlorine!
Anhinga in NJ