Our 25000 gallon inground pool recently flooded with salt water from Hurricane Gustav. Because we had already gone through draining, scrubbing and replastering after Katrina, we did not want to drain if possible. I did wait a little too long before trying to clean it, but my husband and I both work late and could not get to it. Leslie's Pool Supplies recommended draining but I opted not to. I begin shocking and vacuuming it. The pool is now clear however it is stained and has barnacles. The barnacles do scrap off easily and I do not think it will be a problem. The stains are another problem. Someone told me to try dropping a vitamin c tablet in the pool and see if the stain disappears. She said if it did that it was organic and could be cleaned with citrus acid. However, I did not ask how to clean a 25,000 gal pool with citruc acid. Do you by any chance have any suggestions for getting my stains off without draining? Or even getting the barnacles off easier? Thanks for your help.