Swimming Pool Blog
by Rob Cox February 28, 2013
Mesh Covered Pools: Green Pool Openings
Mesh covers are Awesome - easy to work with, durable, great looking. But if you're not careful, your mesh safety cover can allow your pool water to turn a dark green color.
Mesh pool covers, so convenient and safe as it allows water to drain through, also allows sunlight and contaminants to wash into your pool. And if your pool looks like the one pictured left, it acts like a tea bag, allowing the leaf tannins to leach into the pool water.
Later in the spring, pollen and other very small spring debris adds to the organic load which your winter pool chemicals try to control.
The good news however, is that a green pool opening on a mesh covered pool is entirely preventable. With a little spring cleaning, you can ensure that your pool cover comes off to blue and clear water - even if you open a little later than usual.
Here's 6 tips for avoiding a messy mesh cover spring opening. Taking a little time now can save a lot of time (and money) later.
1. Keep the Water Level Lowered. Set a cover pump on the first step or drop it into the skimmer, to keep the pool pumped down to the bottom of the tile. This is important during winter to keep the water from freezing at the tile line, and important during spring to keep the water from touching the underside of the pool cover. When this happens, it creates a wet-spot on the cover that traps debris, and then allows their tannins and acids to soak into the pool. It also traps wind blown contaminants, which increases the demand on your winter pool chemicals.
2. Clean off the Cover. To remove wet gunk from your mesh pool cover, use a pool leaf rake on a pole to scoop up the spring detrius from the top of the cover. A pool brush can also be used to push the debris to one side. If the debris is dry, you can use a leaf blower to blow off the cover.
3. Clean off the Deck. If you haven't cleaned your pool deck and surrounding areas since last fall (and c'mon, who has?), now is another good reason to fire up the blower, or clean out the leaves around the pool that may blow under the cover or come to rest on top of the pool cover.
4. Test the Water. After cleaning the mesh cover and the pool deck, remove the springs from both sides of the cover, but leave the ends attached. Then pull the sides of the cover onto itself, so that both long lengths of the pool are exposed. Test the water for pH, Alkalinity, Hardness and chlorine level. Make any adjustments to the water balance.
5. Brush the Pool. Your pool water has been sitting stagnant for months, there are layers of funk growing on the walls! A good brushing does wonders for the pool during early spring, and will disrupt young algal colonies that have been unmolested for 4-6 months.
6. Add Algae Protection. Since you may not begin filtering for several more weeks, the water will need some added protection. You can shock the pool, add Pool Magic or use a quality pool algaecide to boost protection. Or, if you use a chlorine floater, you can simply add more chlorine tablets, and possibly open up the floater holes a little more than their winter setting.
That's about it! Follow these steps to a blue and clear pool covered opening, even with a mesh pool cover!