If proper caution is taken, you should be able to drain your in-ground swimming pool. However, it is important that you understand that draining your in-ground swimming pool is not recommended often and could cost you some serious cash if you mess it up. Aside from ruining your pool liner, you could have to replace your entirely if you don't use proper care. For this reason, it is important that you contact a pool construction professional before attempting to drain your in-ground swimming pool if you have any hesitations. Now, let's get started.
First, you will need to rent a sump pump that is capable of being submersed in water. You can usually rent a high quality sump pump at your local home improvement store at an affordable hourly rate. Make sure you also request 50 foot rubber hoses with the sump pump to make sure you actually pump the water out of the pool and into your sewer access point. Once home, go ahead and connect the sump pump hose to your sewer access point.
Submerse the other end of the sump pump in your pool and then plug the pump into an electrical outlet. Once operating, expect the pumping process to last anywhere between two to four hours, depending upon the quality of the sump pump you acquired. You can also use a separate hose to spray off the debris and grime that has gathered on the sides of your pool as you empty it. Then, when you want to fill your pool up again, get in contact with your Town Office or City Hall to see about getting fresh water pumped back into your pool.