I live in the Mid-Atlantic and couple a few big storms and a lot of rain in the past few months and I have a pool which is very full....as in almost to the coping. Pool is vinyl and has the floor drains. My question is can I open the floor drains, pump to waste and get the level down and when finished close the control valve and blow out and lock the floor drains? Is it that simple or do I have to blow out the skimmer line and 2 returns again? Just want to make sure I am not missing something that will screw the plumbing up. I did a search and found nothing with regards to this so thanks in advance for your help.