Just an update on the CS situation from our view is that there are still many many tubs that are not remediated. Our staff have spoken with many manufacturers and customers directly in an effort to synergize a working protocol. So far, we feel that the reduced pH method works fairly well. You need to keep,the pH around 3.8-4.0 for a few days after the Ahh-Some cleaner has been added. If the tub owner puts the tub on a run/stop cycle so we get flow and then a soak period for the product to penetrate more effectively, this should enhance the clean out. People are always asking if this problem can reoccur? The simple answer is probably not but we Can't be 100% sure. Lastly, if you are using any filter that has been in contact with the calcium Stearate, discard them. Do NOT use a new filter or filters until you are certain that the issue has been successfully rectified. This is a frustrating issue for the consumer, the selling dealer and especially, the manufacturer.