Is it best to direct the water return jet into pool side or straight down?

The best direction for the water return jet in a swimming pool is generally towards the pool side, as it helps with water circulation and prevents stagnation. Here's why:

Pool Circulation: Directing the water return jet towards the pool side creates a flow of water that circulates throughout the pool. This helps distribute chemicals, such as chlorine or bromine, evenly, ensuring proper sanitation of the entire pool. A strong water flow also aids in preventing the accumulation of dirt, debris, and algae in one area, promoting overall pool cleanliness.

Surface Agitation: When the water return jet is directed towards the pool side, it generates surface agitation. This agitation helps break up the water's surface tension and prevents the formation of a stagnant layer on top. Stagnant water can lead to the growth of bacteria and other microorganisms, compromising pool water quality.

Effective Filtration: Directing the water return jet towards the pool side helps guide water towards the pool's main drain. This enhances the efficiency of the pool filtration system by ensuring that a steady stream of water flows towards the filter, allowing for proper filtration and removal of impurities.

Even Temperature Distribution: By circulating the pool water effectively, the return jet helps distribute the pool's heated water evenly throughout the entire body of water. This prevents the formation of areas with significantly warmer or cooler water, ensuring a comfortable and consistent swimming experience.

Preventing Dead Spots: Proper circulation and agitation also help prevent the formation of dead spots, which are areas of low water flow or stagnation. Dead spots can become breeding grounds for bacteria and algae, so redirecting the return jet towards the pool side helps eliminate them.

It's worth noting that some pools may have specific designs that call for different water return jet directions based on the pool's shape and size. However, in most cases, directing the jet towards the pool side is the recommended approach for achieving efficient water circulation and maintaining a clean and well-balanced swimming pool.