You know that eyeball looking thing on your pool wall? That’s called a return. You might think its sole purpose is to point upwards and make your water look all ripply. It’s soothing, right? It’s pretty, isn’t it? However, you may want to rethink that. A return is a pivotal part of the circulation process in your pool. Main drains and skimmers pull the water in. The water is filtered and then resent in to the pool through the returns. Every pool has a system like this in order to achieve good circulation. Good circulation is probably more important that you might think. Look at it this way:
Better water circulation leads to better filtration.
We all want that, don’t we? Seriously, though, circulation can eliminate those spots where no water moves – the dead spots that breed algae and yuck. They are your trouble spots. You know, behind the ladder, in the corners or on the bottom of your pool. It can take several hours to filter all the water in your pool, sometimes cycling it through up to four times before it all has been filtered! The direction of your return can be a real help or a massive hindrance to the circulation and filtration process. By pointing your returns upward, the bottom half of your pool will rarely be filtered. It will lie stagnant while you enjoy the lovely ripples across the water’s surface. All the while, that stagnation is breeding algae, causing you headaches later on.
Let’s pay heed to the direction of our returns. If we direct them toward the bottom of our pool, the circulation can increase and the filtration will be more effective. Heave a sigh of relief, a simple fix of return direction may have just solved some of your algae troubles.