I have a 15,000 gallon saltwater pool. My zodiac cell has kicked the bucket or at least the controls seem to have as the lights show add salt or no flow all the time,even after cleaning. I put a tablet in yesterday morning, checked around 3pm and had an excess of chlorine well over the top of the scale 3.0 using a Guardex 4 in 1. Today checking at 12 noon i have a barely detectable trace. i cannot test the Stabilizer so I have had my Pool Maintenance man give me my readings and about a month ago we added until he was satisfied with all readings. Where the heck is my chlorine going do i have too much water flow through the tablet and I am just dissolving them too fast. I will be installing a new complete SWG system after i complete researching whats new and working. My pool was installed about 5 years ago and i replaced the zodiac cell one year ago.