At one point or another, you’re bound to experience cloudy pool water. Cloudy water can’t really be pinned onto a single cause, as it’s usually the result of many contributing factors. Understanding those causes however is an intelligent approach to getting rid of it. Here are few explanations and appropriate combative methods.
Pool water will cloud the moment algae begins to grow, and when a pool suffers from an inadequate chlorine level, cloudy water is inevitable. Regularly add chlorine and algaecide as recommended by your pool’s manufacturer, and shock the pool every one to two weeks. Just be careful not to overdo it. Too much chlorine will offset a pool’s pH and alkalinity; contributing to cloudiness as well. Use a testing kit on a regular basis and make the proper adjustments at least once a week.
Unbalanced Water Chemistry
Maintaining balanced water chemistry should be a top priority for any pool owner. If your water is cloudy, one or more of the pool water’s properties may be the cause. In particular, improper levels of calcium hardness and/or total dissolved solids will lead to cloudy water. Testing the pool’s water chemistry will reveal what the problem might be. You can learn more about maintaining water balance and solving related problems on the swimming pool water chemistry page.
Filter Over Cleaning
Believe it or not, constantly cleaning or backwashing a pool’s filter will cloud water as well. The debris that a filter collects traps even more debris, and when it’s relentlessly removed, some debris in the water passes right through the filter and re-enters the pool!
Inadequate Filter Size
Using a filter that’s too small for a pool’s size or activity will cloud water too. One of the keys to keeping water clear is keeping it circulated with a filters pump. A small pump can’t move a large volume of water so be sure that your filter is appropriately sized and operated at a minimum of twelve hours each day.
Of course another way to circulate a pool is to use it on a regular basis. Moving the water helps to break up debris so that it can be easily filtered.
Skimming a pool after each use will minimize the effect of floating debris. Debris that has already sunk to the bottom of a pool will have released unfilterable material into the water and cause cloudy pool water. But weekly vacuuming and wall brushing with the proper materials will decrease this effect. Watch your cleaning solutions however - Never use cleaners that aren’t designed for the swimming pool as they’ll weaken the effect of existing algae killing agents and thus contribute to cloudiness.
Lack of Sunlight
Outdoor pools and the equipment that’s used to clean them should be exposed to the sunlight’s naturally oxidizing UV rays. This will help kill bacteria and create an environment in which they cannot survive. Only cover the pool when you’re not at home or in the evening. And leave your cleaning supplies in the sunlight for the same effect.
Soiled Toys and Heavily-Sunscreened Swimmers
Toys that are played with outside of the pool, and swimmers who wear lotion and cosmetics inside the pool, will introduce additional elements that disrupt a healthy pool’s chlorine balance. Keep toys clean and dry when not in use and encourage swimmers to shower before entering the pool.