The top few inches of your pool is usually the dirtiest and for your pump to clean properly it is best to keep the water calm on the top of the water.
Above ground pool water circulation direction.
Pool water is directed through the feeder where sanitizer is eroded into the pool water and sent back to the pool.
Above ground or inground temporary or permanent simple or fancy all pools have a circulation system and they are all remarkably similar.
If a pool only has one or two returns the returns can also be pointed downward to increase circulation.
Point it away from the skimmer so the clean water circulates out into the pool.
I am the owner of an above ground 24 foot swimming pool and a 140.
Think of the recycling symbol or a whirlpool.
If you point it towards the skimmer you re just filtering the already filtered water.
Before you can have any circulation you first must have a pool pump.
To give your swimming pool the best filtration you should point your return jet away from your skimmer and downward to get the best circulation and filtration.
On older pools return jets might have been built on one side or end of the pool with the skimmer opposite the return jets.
The feeder should have a metering valve that adjusts the rate sanitizer is added to the pool.
A pool typically has two to three return jets where the water that filters through the circulation system returns to the pool.
Your pool may have an automatic chlorinator brominator attached to the circulation system.
Water is pulled from the pool via one or more skimmers and sometimes one or more main drains by an electric pump.
This video is an overview of the filtration system and clearly shows the circulation of water through the filtration cycle.
For optimal circulation angle your return jets downward to either the left or right but all in the same direction.
In fact the angle of your return jets can make a major difference in the efficiency of your pool water circulation.
For instance pointing all the returns in a clockwise direction helps the water circulate clockwise.
For effective circulation it helps to have these multidirectional.
Most people like to point the jets in a unified direction clockwise or counterclockwise.
Conventional wisdom dictates that most pool owners should point the jets up to create vigorous ripples in the water.