Flood And Mud In Pool

Our pool was recently flooded. We elected to drain clean and fill at considerable expense. Based on where we are located I believe this will not be the last time this happens.

It has since been recommended that we use alum as a floc agent.

I believe that this will cause floculation, but my question is what issues will I have with this. I hear many people say they dislike floc agents and would never use them. Why is that. Are there long term effects. We had a lot of mud, and I assume there would still be a major cleanup but would this ultimately be better or worse than drain, clean and fill?

I don't mean to ignore your question about alum/floc but if you've not begun draining your pool yet...DON"T!!! Not until you are certain the flooding you had has not saturated the ground around your pool. If it has and you drain your pool you will likely cause major damage. Hope i'm not alarming you unnecessarily but if there is high hydrostatic pressure around your pool from the flooding, draining your pool right now is NOT the thing to do.

Floc is ok as a last resort. When I had flood water in my pool, I took it up higher than shock level for my cya, and in a day the water was blue again. I have an aquabot that got up the dirt on the bottom. I used floc a couple of years ago and didn't have any adverse effects. I think it can gum up filters if you use too much.