If I plug my skimmer can I drain my pool on backwash? Wont it just drain from the main drain if I plug the skimmer? I don't have a valve on my pump to shut off the skimmer but will a plug do the same thing? I am only draining about 70% of the pool. I just didn't know if there were any drawbacks to this method since I can save $50 from renting a pump again. Thanks!