How to Calculate the Amount of Salt Needed
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:
Where:
- TSN = Total Salt Needed
- PV = Pool Volume
- SN = Salt Needed (in ppm)
Understanding Your Results
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.
What is the Ideal Pool Salinity?
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.
How to Use the Pool Salinity Calculator
There are just a few steps needed to use our tool, they are as such:
- Enter your pool's volume, change the unit of measurement if needed.
- Enter your pool's current salt concentration. You will need a test to get this value which you can find at your local pool supply store or online.
- Then enter your desired salt concentration, by default it is set at 3,200 which is regarded as a very good level of salt for most pools.
- Hit enter and you will instantly get your answer!
Calculation Example
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.