Stormwater outlet

The stormwater outlet or overflow pipe is an often overlooked part of a biological pool, but it’s crucial for the proper functioning of the system.

Water falling on the surface increases the amount of water in the pool. If it’s more than a drizzle, it results in a rise in the water level relative to the surrounding area. This excess water must be controlled, because without it, the pool could overflow uncontrollably, causing damage to the banks or the structure itself, and potentially to neighboring areas.

The stormwater outlet is the overflow pipe, located at a slightly lower elevation than the normal bank level. There, the water flows into a small box that has at least two branches of adequate diameter, carrying the water to a place a few meters away from the pool, usually directly to the nearest water line. And, of course, the stormwater outlet is subject to regular cleaning before and during the rainy season to detect any blockages.

Organized in this way, torrential and persistent rains like those of last winter, which were quite harsh throughout the country, no longer have a chance of causing any damage to the biological pool.