Target Cya Level In Swg Pool With Vinyl Liner

Adding salt shouldn t be an issue.

Target cya level in swg pool with vinyl liner.

So the minimum fc level in an swg pool is around 4 5 of the cya level so for 80 ppm cya that s around 3 6 ppm. Since i live in alabama we don t really close our pool over the winter. 0 0 2 ppm. Calcium for a liner pool can be a bit lower than a plaster pool in the range of 150 250 ppm.

Swcg is accurate and descriptive and is similar enough to swg that many people will be able to recognize it easily. High levels of chlorine with low stabilizer or cya levels can fade liners but chlorine from a swcg will have. Optimal levels of cyanuric acid. We actually were in the pool in march my cya is 30 and i have a little green algae which i really struggled to get rid of last summer and early fall.

That means if your pool has 50 ppm of cyanuric acid you ll need to keep free chlorine at 3 ppm the ideal level in any case to effectively sanitize and keep algae at bay. As you can see we recommend that vinyl liner and gunite pools be treated the same with the exception of total alkalinity and calcium levels. So that would be 3 6 ppm fc if you have 80 ppm cya. My fc is 5 ph is 7 6 and ta is 80.

The higher cya level will protect the chlorine from degradation from sunlight even accounting for having a higher fc to compensate for chlorine effectiveness. The 1 3 ppm fc is incorrect and we ve seen many swg pools at 1 ppm and 2 ppm fc and 70 80 ppm cya develop algae. 0 0 2 ppm. When using cyanuric acid aim to keep free chlorine levels at 7 5 percent of cya level.

If a vinyl liner s calcium level is too low this soft water situation could lead to foaming and other water problems and can harm the vinyl. Not sure i got it all because it s in there now. Without getting deeply technical in this blog let s just say that vinyl and gunite pools have different needs when it comes to these specific values. The concentration should not exceed 100 ppm which is the absolute upper limit prescribed by the world health organization.

According to the pool hot tub alliance the ideal range for cyanuric acid should be between 30 and 50 ppm parts per million when used. Calcium hardness is also very important to the chemical balancing of your vinyl liner swimming pool. First is to have a cyanuric acid cya level of 60 80 ppm 70 80 being better and set your target fc to be at least 4 5 of the cya level.