Perhaps a cornerstone element of TFPC is understanding the relationship between the chlorine in your pool and the stabilizer you put in to protect the chlorine from the sun. For a better experience, please enable JavaScript in your browser before proceeding. Should you swim in a green pool and other sanitation related questions?

button. After providing these details, click the 'Calculate!' Instead, chlorine is added to If you have a salt water chlorine generator, chlorine tablet dispenser, injection pump, or Liquidator, you will still need to use another chlorine source for SLAMing. With CYA above 90 we recommend replacing water to get CYA down before you start the SLAM process.Depending on what kind of filter you have, it can take the filter a week or more to completely clear up the water, even after all of the algae is dead. This may be due to the high chlorine level within the cell.For indoor pools we recommend CYA between 20 and 30ppm. Threads 209,445 Messages 1,886,424 Members 240,551 Latest member sorensok. The reasoning for using CYA indoors is quite different. Another way to distinguish between the two is that when you go up to shock level and brush the pool, mustard algae won’t come back as long as you stay at shock level. At very high CYA levels it can be impractical to reach such high FC levels. Without that specific test, you risk wasting your time and potentially having to start all over later.SLAMing an outdoor pool is most effective when CYA is around 30 to 40. To kill algae or lower CC, you need to put in lots of chlorine all at once. 30 PPM chlorine shock chart for killing algae and bacteria, and the 3.0 PPM super chlorination chart, used for cloudy water, after rain or heavy use, or low chlorine levels. Below 30 you lose too much chlorine to sunlight. Recommended shock levels are designed to break down contaminates reasonably quickly while posing minimal risk to the pool. When SLAMing, you need to keep adding chlorine until the breakdown process is complete.Higher FC levels will oxidize contaminates more quickly, but levels that are too high can cause damage to the pool or the pool equipment. Confirm on Trouble Free Pool's Chlorine/CYA Chart to know the correct amount of chlorine to add at a given level of cyanuric acid. Home Search. By regularly adding chlorine shock to your water, you completely avoid the hassle of SLAMing your pool to clear algae and ammonia. The charts below show the recommended relationship for outdoor residential pools.The shock levels shown have equivalent effective disinfecting chlorine amounts. If you fail to see any improvement you might have a problem with your filter, or have a higher CYA level than you think, or bad circulation, or have some other more complex problem.The goal of SLAMing is to add enough chlorine to oxidize all of the algae, combined chlorine, bacteria, viruses, ammonia, and other organic contaminates. For more information please ask on the forum.Acknowledgment: The original Chlorine/CYA “Best Guess” chart was developed by Ben Powell. See  All of these devices are designed to add chlorine slowly and steadily over many hours. Using this chart you will see ideal chlorine range and your Shock Level for a Slam. Oxidization breaks down the organic molecules into smaller parts which are harmless. This tool will tell you what you need to do in order to correctly shock your pool. Menu Menu. Richard Falk (chem geek) has refined and expanded on that original to produce the  Use this pool shock dosage chart to determine the correct amount of pool shock treatment. It is impossible to know in advance just how much chlorine will be required to SLAM the pool. Dealing with pools has allowed TFP to become the original authors of the best calculator on the net.

SLAMing your pool is the best way to eliminate algae, sanitize your pool and get your water crystal clear. Generally, the more stabilizer, the more chlorine you need to maintain its effectiveness. Pool Stabilizer Chart

and use liquid chlorine only for the duration of the SLAMIf you have a sand filter, you can speed up the process of clearing up the water by adding a little DE to your filter. Home JavaScript is disabled. Home If you have algae, or the CC level is above 0.5, or the free chlorine (FC) level is zero, you should SLAM the pool. Sand filters are the slowest, and cartridge filters are somewhere in-between.While SLAMing, the appearance of the water should improve each day, though perhaps only by a little. As CYA goes up, SLAMing requires more and more chlorine, which starts to get impractical around 80 or 90. SLAMing your pool is the best way to eliminate algae, sanitize your pool and get your water crystal clear. Please select the type of pool shock and your preferred sanitizer, and enter your pool's current free chlorine (FC) and cyanuric acid (CYA) / stabilizer levels below. DE filters are usually much faster than that, but require frequent attention when cleaning up algae. If you have algae, or the CC level is above 0.5, or the free chlorine (FC) level is zero, you should When all three are true, you are done SLAMing and can allow the FC to drift down to normal levels.If you have questions that aren’t covered here, by all means ask on the forum…you’ll get lots of help.It is very difficult to do this procedure correctly unless you are willing to do your own testing with a FAS-DPD chlorine test (included in the better test kits and also available separately). Shock your pool! The best solution to this is simply shut off the SWG, Liquidator, injection pump, etc. Search titles only ... Trouble Free Pool Statistics. ... up to the extra high mustard algae shock level for 24 hours. Discover the pool calculator behind the perfect pool, PoolMath.