The granulated Cyanuric Acid Chlorine Conditioner I have been using takes forever to dissolve. The last time I cleaned my filter I found a pile of it on the bottom completely undisolved. I have tried putting it in a bucket of hot water but even that doesn't seem to work. My question, Leslie Pools has a liquid Cyanuric Acid Chlorine Conditioner, is that a suitable substitute? Any thoughts would be appreciated. Thanks.