I noticed there have been quite a few cases this season where all the CYA was converted to ammonia. I've read that this happens because of a bacteria found in soil consumes it and releases ammonia as waste.
In the cases we see, this is always bad. Usually resulting in high chlorine demand to get rid of the ammonia and the need to add CYA again back to recommended levels.
Today it occurred to me...
Could this be used to convert only a fraction of the CYA in pools with levels >100 and stopped at a desired level?
We would need to:
Identify the bacteria strain, culture it, and keep it alive in storage in measured quantities
Calculate correct dosage concentration per gallon
Calculate/measure CYA consumption rates
Measure ammonia ppm per ppm CYA consumed
Steps could be:
Reduce FC to 0 with thiosulfate
Add calculated bacteria dosage
Measure ammonia until calculated concentration is reached
Stop consumption event with SLAM process to kill bacteria and break down ammonia.
The question is: Will the cost of the bacteria and chlorine be more than the cost of fresh fill water.