For best results, follow the instructions on the algaecide package. 1. Solid forms of bleach/shock/sanitizer can be slower acting, typically add too much CYA (conditioner), and effect other water balance levels. of SEAKLEAR ALGAE PREVENTION & REMOVER per 10,000 gallons of pool water (or 500 ml per 40,000L) will prevent algae growth in all pool types. My pool holds 8,500 gallons of salt water. For a clean and algae-free swimming season, we recommend to start treatment before the first swimmers even jump into the pool. oz. It is a violation of federal law to use this product in a manner inconsistent with its labeling. An algaecide is for preventative maintenance, and nothing more. It can become chlorine resistant, and can survive without sunlight. Not sure how many gallons your pool uses? 10. Green algae or blue-green algae is the most common type; and like most plants, all it needs to survive is sunlight, water and warmth.. Yellow algae are another form of green algae, tinted with yellow carotenoids. Swimming pool algae grows due to lack of proper sanitation, filtration and high pH. I have the "HTH Super algae guard" which was the weaker of the two algae guards they had at Wal-Mart. To shock your pool, use 2 pounds of shock for every 10,000 gallons of water, which should raise your chlorine to 10.0 ppm. The amount of algaecide you should use will depend on the size of your pool (in gallons). Use our Pool Volume Calculator to calculate your pool’s volume. But I made a mistake when adding algae guard. The algaecide I use is Sani-Marc Prevention 40. How much algaecide should you put in your swimming pool? oz. of SEAKLEAR ALGAE PREVENTION & … Prevent Algae All Season Long. Algaecide, when used properly, can be an important tool in fighting the onset of green, black or mustard algae in your swimming pool. Chlorine is the chemical to kill algae and the best form is liquid chlorine (bleach). You can go to these pages to learn exactly how much you need for a good shock to clear up your algae: DIRECTIONS FOR USE. A couple things... algaecide is for the Prevention, not the removal of algae. However, a pool closed with algae, or with a loose fitting cover, or older safety covers that allow sun and dust to enter, or one that has a wet spot in the middle from a too-high water level – all could benefit from additional algaecide or shocking with chlorine-free pool shock, when water begins to warm in early spring. The good thing about this type of algae is that it’s easy to get rid of. It won't get rid of any algae that's already in the pool, only a good chlorine pool shock will do that. After shocking your pool, it is a good idea to add either Leslie’s Algae Control or Pool Perfect + PHOSfree to your water. The following form represents an easy method to calculate pool volume. I am a first time pool owner and am new to all of these chemicals. DOSAGE RATES. Instructions. 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