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Lbs of Salt Needed to Obtain 3500 ppm in a Pool

Pool Size in Gallons
Current Salt Level (ppm) 10,000 15,000 20,000 25,000 30,000 35,000 40,000 45,000  
0 292 438 584 730 876 1022 1168 1314  
250 271 407 542 678 813 949 1085 1220  
500 250 375 501 626 751 876 1001 1126  
750 229 344 459 574 688 803 918 1032  
1000 209 313 417 521 626 730 834 939  
1250 188 282 375 469 563 657 751 845  
1500 167 250 334 417 501 584 667 751  
1750 146 219 292 365 438 511 584 657  
2000 125 188 250 313 375 438 501 563  
2250 104 156 209 261 313 365 417 469  
2500 83 125 167 209 250 292 334 375  
2750 63 94 125 156 188 219 250 282  
3000 42 63 83 104 125 146 167 188  
3250 21 31 42 52 63 73 83 94  
3500 Ideal Ideal Ideal Ideal Ideal Ideal Ideal Ideal  

Note: The above chart is based on adding 0.0292 pounds of salt to 1 gallon of water to increase your salt residue 3500 ppm. Stated differently, this is equivalent to adding 1 lb of salt to 1,000 gallons of water to increase salt residual 120 ppm.

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