We've already seen that the water in a swimming pool needs to circulate through a filtering system, to remove dirt and debris. 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.

Where does the water go when you drain a pool?

How do I drain my swimming pool? 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.

Can I drain my pool water on the lawn?

A freshly chlorinated pool should not be discharged into the yard; the chlorine is harmful to yard plants and the environment as a whole. Using a test kit, your pool water needs to reflect a certain concentration of chlorine, such as 0.1 ppm (parts per million), before it is safe to drain into your yard.

How can I drain my pool without flooding the yard?

1. Unroll the pump's intake hose so that it reaches the center of the pool (or as close to it as possible), and submerge it in the pool.
2. Place the outlet hose so the exiting water doesn't flood the area, but drains off away from the pool.
3. Dry your hands thoroughly.

Does draining a pool damage it?

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. ... For fiberglass pools, the risks of damage are even greater.

How to Drain Water From an In-Ground Pool With a Drain at the Bottom : Pool Maintenance

How do I drain the water from the bottom of my pool?

Since both draining methods will not drain pool water to the last bit, you need to remove the extra liquid left at the bottom.
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To do so, you can:

1. Use a wet vacuum to suck the stagnant water.
2. Sweep the liquid into the drain.
3. Remove the pool liner and flip it over somewhere your property to get rid of extra water.

Does a pool need a bottom drain?

Main drains are not required in an inground swimming pool, however, they are strongly recommended and can be extremely useful in some circumstances. ... This is useful when replacing your pool liner. Main drains are also helpful in the filtering of water and dirt from the bottom of the pool.

How do I know if my pool main drain is working?

you can tell if your main drain is working by perhaps putting a leaf on it. If it sticks, its working. In any case though, the main drain is not why your pool is having a problem. It has nothing to do with your pool turning green.

Why do pools have 2 drains?

When constructing a new swimming pool, if you are going to use a main drain it is required that you use two. This is due to safety regulations to help prevent Main Trap Entrapment. Main drain entrapment occurs when the suction is so great through a single main drain that a person can become stuck on or in the drain.

Do swimming pools need a drain?

Pools will need to be drained and refilled every 5-7 years on average, or if there is a major necessary repair. Otherwise, avoid draining your pool if at all possible. Basically, if you want to know when to drain a swimming pool, the answer is when you have no other alternative.

Do pools have a drain?

Most pools have two main drains, but a small pool may have only one. The drains are positioned at the pool's deepest point.

How long does it take to drain a pool with a garden hose?

The average outdoor spigot on a home can produce up to 12 gallons per minute. A small pool can be filled in a few hours, while a large one can take 14 hours.

What is the drain at the bottom of swimming pool for?

Main Drain: The main drain is typically located at the deepest point of the pool and is used to lower the water level, however its primary purpose is to circulate water from the bottom of the pool.

How often should you drain a swimming pool?

Pool industry experts recommend you drain your pool and refill it every five to seven years.

Can a pool drain disembowel you?

Pool suction drain injury, also known as suction entrapment, occurs when the drain of a wading pool or swimming pool suck in a swimmer's jewelry, torso, limbs, hair or buttocks. Evisceration, also known as disembowelment, could happen in case of buttock entrapment.

Should pool main drain be open or closed?

For proper water circulation, it is best to position the flap so that it is about 2/3 closed. This will allow for more flow through the main drain than through the skimmer, which will promote a "bottom-to-top" circulation throughout the pool.

How does a pool circulate water?

In a pool circulation system, water is drawn from the pool through skimmers and drains by a centrifugal pump. The water passes through a basket in the skimmer and in front of the pump to remove large debris before it gets to the pump's impeller.

Where can I drain my pool water UK?

If you want to empty your pool, you should check the best way to dispose of water with your environmental regulator or your water and sewerage company or authority. You will need authorisation to dispose of pool water into sewers, surface waters or ground waters.

How long can I leave my concrete pool empty?

Swimming pools are meant to be filled with water. If that's taken away, the pool can be damaged. Although concrete pools are safer to empty than other types like fiberglass or vinyl-lined pools, they should not be left empty for more than a few days. Draining a pool should only ever be a last resort.

Will an inground pool collapse without water?

The Problem With An Empty Pool

When that amount of weight and pressure is removed from the structure, the pool can actually pop out of the ground due to ground pressure forcing it up. This can compromise its structural integrity, damaging the walls, floor, liners, and even the deck itself.

Can I drain my pool for the winter?

It's not good to leave your pool empty when the weather gets cold. ... You may naturally assume it's best to completely drain your pool of water for the winter months, because you fear the water will freeze and cause damage. Actually, it's not good to leave your pool empty when the weather gets cold.

Is it bad to leave an inground pool empty?

It is not advised to leave a pool empty for extended periods: Depending on the level of the water shelf, sustained pressure on an in-ground pool without water can cause external damage. Additionally, a drained above-ground pool can receive structural damage from the elements.