Use an algaecide and test for phosphates.
Yes any sort of life in the pool will effect free chlorine.
Adjust your chlorine generator levels.
Well... if you were ODed with chlorine, you would die. The amount in a pool wouldn't harm you, but because bacteria and algae are 1000 times smaller than you, they can die easier. Yes, chlorine can kill.
You scrub the pool and filter the water. Or scrub the pool and do a water change. Some people use salt as an algae inhibitor and they do make salt for pools. You can get it at Walmart or home improvement stores, or at pool stores.
I have treated for metals and algae and now have a problem getting the chlorine levels up. The ph, hardner and alkilinity is ok.
well when you leave your pool covered for the winter, you are unable to put chlorine into it. Chlorine prevents algae so to answer your question, the lack of chlorine causes algae
sock it with chlorine, bleach
yes, the algae feeds on the chlorine.. must get rid of algae, then bring up chlorine level
A salt water system creates chlorine, which, in theory, should prevent algae growth. Chlorine levels must be tested at least once a week. During the hottest part of the summer, levels should be between 4 and 5 ppm. Yet algae can survive in these high levels of chlorine if there are phosphates in the water. Think of phosphates as a food source for algae. As long as they are well fed, they can survive high chlorine levels. Most pool stores can test for presence of phosphates. They will probably advise you to first treat your pool with an algaecide, then treat the phosphates.
vineger
They are on the right. --> Use pool shock. Double shock it to get rid of algae. Start using "No-Phos" or "Phos-Free". This eliminates the food for algae. Use an algacide to kill the existing algae. Brush all the surfaces of the pool every day to keep algae from latching onto the walls. Vacumn and backwash twice a week to get rid of the dead algae. Make sure your pH is correct so the chemicals can work properly. Once your water is clean, keep using the No Phos product every week. This has saved us hundreds of dollars in chemical use. I'm not sure what you mean by "the water is balanced", but if it means that your PH and Alkalinity levels are ok, then I would suggest making sure that the chlorine levels you're checking are for Free Chlorine, not Total Chlorine (there is a difference). If the Free Chlorine is fine, then as the first guy said, I would shock the pool. If your Free Chlorine dips below the normal levels, however, you should use chlorinating shock. That way the chlorine jumps up, and any chlorine tablets you add into the pool will keep the chlorine level high. Once the algae is dead, brush the entire pool (including the walls, floor, and any stairs, ladders, lights, or other objects that are in the pool). Brushing the pool stops the algae from sticking to anything in the pool, and allows it to be picked up by your filter. After you brush the pool, run the pump, and clean the filter when necessary. You'll know the algae is dead when the pool stops being green - the green color is chlorophyll, which is the chemical that the algae uses to get energy using photosynthesis.
Yes any sort of life in the pool will effect free chlorine.
Algae, time for chlorine. Pool supply places have a test kit (ph) & can tell you how to use & what to add-chlorine or acid.
There are many different products designed to remove black algae from your pool. A good strong dose of pool chlorine will relieve the problem most of the time. Chlorine will naturally dissipate into the air and is removed from the pool by sunlight. You will need to stay out of the pool for a day or to until the chlorine settles back to an acceptable level. Other methods that work well are to lower the water level a few inches to give you better access to the algae and spray it with chlorine bleach. This will kill the algae and also take the color out of it. You may need to use a soft brush to remove it from the pool wall and re-spray to get rid of any algae left after brushing.
Usually it is an imbalance of chlorine or PH, which lets algae live in the pool.
You only need to shock the pool if there is visible algae, or if the ppm of total chlorine is higher than the ppm of free chlorine. Generally, a level of 2-4 ppm chlorine is all you need to keep your pool sanitary. Let the level drop to that on its own, or use sodium thiosulfate to drop it quickly if you notice itchy skin from excessive chlorine.
If there are just a few spots and you do not wish to drain the pool you must first scrape the "head" off with a wire brush or algae stone and then apply a granular/powder chlorine directly on top of the spot. If the pool is riddled with the stuff it would probably be easier to drain the pool, scrape off the heads of the black algae and then chlorine wash the pool. Let the chlorine sit for a half hour before rinsing.