Hello, I am new to the forum and have spend many hour reading all the various pool school recommendations and a multitude of posts. On June 6th I opened the pool to find a terrible swamp. After much bleach (about 25 gallons) the water is now crystal clear. Then I could not get it to hold chlorine. Now I am losing 1-2ppm overnight of free chlorine. I cannot really do a SLAM, due to work and time constraints. One thing I should probably mention and am acutely embarrassed to say is that I accidentally bachwashed flocculant into the filter after the algae treatment. I called the company and they thought this would not really present any problems. They recommended a chemical clean WTO be safe which I have not done.I am still concerned as I can find no information anywhere about this particular error of mine. Anyway, the water has remained crystal clear, I bought the K2006 test and am waiting for it to arrive.here is my water chemistry for the last few days. Filter has been running 24/7 for 10 days. Backwashed three times before all of the readings below but only today has the pressure reading changed from a baseline of 19, today for the first time it is 25.
6/15 Tuesday : computerized pool store results:
Total dissolved solids 500
Copper, iron, manganese, nitrates all 0
Sat index .5
My results using k2005 test kit ( I just today received my K 2006 test kit) we basically the same, although I got a CA of 450 and a CYA OF 50. The chlorine at that time with the K2005 test kit in the evening after 726oz of 8.25/7.85 available chlorine ie Clorox, would test 10 but could have been higher since that is the max the K2005 test kit would read. By 5:00 am before the sun, it would test 0 FC and CC. This went on for 2 days then started testing 1-2 at 5 am. This is adding 726 oz bleach every night. The pool is in the sun the entire day, temps around 85-90 degrees.
6/17 Wednesday k2005 test kit
FC 7 at 8 pm added another 726 oz bleach
FC at 5 am 10 or higher
Added 12 lbs baking soda in 2 doses 12 hours apart and 2cups MA
FC at 5 am was 6
FC @ 8 pm was 5
6/19 today, Friday
FC @ 5 am 10
FC @ 1 pm 5
Same computerized pool store test@ 1pm
Total dissolved solids 500
Sat index 1
I Received the k 2006 test kit which gave these results right after the computerized pool store result
CYA less than 20
1) what would cause my CYA to drop from 50 to 10 in 4 days. No water has been removed, I did add a small amount of water this morning, hard to say how much water added but the hose was only running for 30 minutes.
2) Any intel on the flocculant I sucked into the filter? It was probably no more that 25% as the vacuum would quit sucking quickly, then I realized my error and vacuumed to waste.
Any recommendation , information, experiences would be greatly appreciated.
I have read everything in pool school,all the posts I could find on CYA, ammonia levels, there is no information on flocculant in the filter.
Sorry for the long post, it's been a heck of a 2 week opening!