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.
What is the purpose of a pool main drain?
The main drain is the primary way that water is drawn from your pool into the pump and filter. The main drain is located on the bottom of the pool in the deepest part. Most pools have one, but larger pools may have multiple main drains. Main drains must be protected by an approved cover.
Is a pool main drain necessary?
Main drains are not required in an inground swimming pool, however, they are strongly recommended and can be extremely useful in some circumstances. The advantages of main drains are to give you the ability to drain the water from your pool without the use of a sump pump. This is useful when replacing your pool liner.
How do I turn off the main drain in my pool?
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Where is the main drain on a pool?
The main drains are usually located on the lowest point in the pool, so the entire pool surface slants toward them. Most of the dirt and debris that sinks exits the pool through these drains.
How do I close the main drain in my pool?
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How do you drain an inground pool without a main drain?
Because there is no main drain on most aboveground pools, you will only be able to lower the water to the bottom of the intake or skimmer, using your aboveground pool filter system. To drain an aboveground pools, either a). Use small submersible electric pump and garden hose, or b).
Where is the main drain in an inground pool?
The main drains are usually located on the lowest point in the pool, so the entire pool surface slants toward them. Most of the dirt and debris that sinks exits the pool through these drains.
Will backwash drain pool?
It is not recommended to drain a swimming pool through the backwash valve. While sucking from the main drain and putting the water down the backwash line will work in some scenarios it puts your pool pump at risk of losing prime and running dry. It is best to drain and refill a swimming pool as quickly as possible.
How do I unblock the main drain in my pool?
Unscrew the drain cover and place the pool plunger over the drain. Push down on the plunger, then lift up. Repeat this several times to force the clog up and out of the drain.