Salinity refers to the amount of salt that is in something, it also may be called salt concentration, and it is often shown as parts per million (ppm).
Pools should have a salt concentration of around 3,000 and 3,400. If you do not know what yours should be, it is advised to go down to your local pool store and talk to the experts there. They can also provide you with the test strips needed to get your pool's current salt concentration.
There are three variables when calculating the amount of salt needed to bring your pool to a certain salt concentration. They are the volume of the pool, current salt concentration, and desired salt concentration. The formula then used to calculate the amount of salt is:
Amount of Salt Needed = (Pool Volume * Salt Needed in PPM) / 1000
The answer you get from that equation then needs to be converted to the appropriate unit of weight measurement and that is how the answers are displayed from this tool.
When you hit the calculate button on this tool, the answer you will get is the total amount of salt you need to add to your pool to bring it to your desired salt concentration. It is a weight, so you may need to add 450 lbs of salt, or you can convert that to kilograms if needed with just the click of a button.
Remember that our tool is used to get an estimate of how much salt is needed for your pool. There is always a slim margin of error, your result may not bring you to your exact desired salt concentration. This is due to the large number of variables that can affect a pool daily.
There are just a few steps needed to use our tool, they are as such:
Let's say you have a pool that has a volume of 20,000 US Gallons and a current salt concentration of 2,950 ppm and want to get its salt concentration back up to 3,200 ppm.
Using this tool you can get the approximate amount of salt needed to achieve this. The formula looks something like this: (20,000 * (3,200 - 2,950)) / 1000. Then convert that to lbs to get an answer of 41.73 lbs of salt needed, or 18.93 kgs.
4,000 ppm of salt is higher than recommended for safe swimming conditions. It should be lower, ideally 3,400 at most.
If you find your pool's salt concentration is too high the only way to lower it is by diluting it. Add more water to lower the concentration of salt in the water.
The exact amount it raises your pool's salt concentration depends on your pool's volume. A table explaining this more in depth can be found here to give you a better idea.
Create Date: August 20, 2024
Last Modified Date: September 3, 2024
