If you can pump around 30 GPM (gallons per minute), which is also equivalent to 1800 GPH (gallons per hour), it should take you 2.78 hours or 2 hours and 46 minutes to drain your pool using a hose.
Draining a pool can take up to 14 hours, depending on the size, so be sure to drain it on a day when you have sufficient free time. You need to be home to check on the pool, the hoses, and the pump frequently. Do not let the pump run dry or it can become damaged.
Put one end of your garden hose inside the port. Thread the hose to the back of your house. Attach the other end of the garden hose to a submersion pump and place the hose and pump in the deepest area of your pool, near the drain. The pool will begin to drain.
A 10,000 gallon pool will take about 14 hours to drain, the maximum rate recommended by the City of Phoenix. It will take twice as long to drain if the pool size is doubled or cut in half.
This siphoning process is simple enough. Immerse the entire hose in some water, then cover one end of the hose with your hand and quickly pull it out of the pool, pointing down below the water level. If you don't cut the hose, you may need to attach the hose to your spigot and fill it with water.
It will take 14 hours to drain a 25,000 gallon pool if you are pumping at 30 gallons/minute or 1,800 gallons/hour.
Siphoning can take days, a small submersible pump will take 6-12 hrs. Work fast to clean the bottom if needed, and re-fill the pool as quickly as possible.
Locate the Drain Valve
The drain valve is located on the outside of the pool. Run a garden hose out, with the female end near the drain valve. Connect the other end to a sprinkler, and water your lawn or garden (if pH is good and chlorine low). Remove the cap.
Flooding Your Grass Is Not A Good Idea
The problem with draining your pool in the yard, if permitted by your local water regulatory laws, is that it will quickly reach its saturation level and increase the risk of flooding your lawn, drowning the roots of your grass, and attracting mosquitoes.
Swimming pool builders often install overflow drains near the rim of the pool that prevent flooding most of the time. If you don't have an overflow drain, or if it is clogged, it is possible for periods of unusually heavy rain to overflow your pool.
First, if the draining is done at the wrong time or under the wrong conditions, you can actually risk damaging your pool structure and liner. All the water from your pool needs to go somewhere when it's drained, and that usually means the ground.
The first choice for draining swimming pool water should be to drain pool water into the sanitary sewer. In-ground pools typically have a sanitary sewer drainage inlet near the pool equipment. Pools and spas not plumbed with a sanitary sewer drainage inlet can be drained to a sanitary sewer line plumbed to the home.
It would take 31.25 hours to fill a 15,000 gallon swimming pool if your water pressure is 8 gallons per minute and your outside water hose is 480 gallons per hour.
Pool industry experts recommend you drain your pool and refill it every five to seven years. No two pools are alike, so there is no set number at which you must drain your pool.
At an average of $0.004 per gallon, city water is the most inexpensive and most popular option. For 15,000 to 30,000 gallons, you'll pay between $60 and $120.
While uncommon, there may come a point that you have to completely drain your above ground swimming pool. We recommend working with a pool professional, but draining your above ground pool is something many pool owners can safely do on their own with a little time and elbow grease!
Start off by unrolling your pump's intake hose all the way to the center of the pool and submerge the same into the water. 2. Be sure to place or arrange the outlet hose in such a way that water goes out (perfectly) without flooding the area and incurring another damage that would need professional repair services.
For vinyl liner pools however (and fiberglass pools too), draining completely is discouraged, and is to be avoided, unless absolutely necessary. Big problems can result from draining a vinyl liner pool. The most common problem is that an older liner can pull away from the walls, and shrink somewhat.
During normal operation, water flows to the filtering system through two or more main drains at the bottom of the pool and multiple skimmer drains around the top of the pool. The main drains are usually located on the lowest point in the pool, so the entire pool surface slants toward them.