Salt Addition Chart - Autopilot Pool Pilot Digital Nano+ Owner's Manual

Page 52

10.3 SALT ADDITION CHART

The following salt charts are included for reference only; once programmed to the correct water volume,
the controller will automatically indicate how much salt is required to achieve optimum water salinity.
The salt in the pool is constantly recycled during normal operation. Loss of salt during a swimming
season should be minimal. Filter backwashing, draining due to rain water overflow, splashing, bathing
suit drag out, and leaks are typical ways salt is lost. Salt does not leave the pool when water
evaporates.
1) Determine pool/spa volume in Gallons or Liters.
2) Find current salt level in the pool. Many pools will already have a significant salt residual, so
always test water before adding salt. (This can be obtained from the control display or by
testing water.)
3) Using Table 9, find the current salt level in the left column.
4) Determine and locate the pool/spa volume in the top column.
5) Locate the intersection of the row and column to find the amount of salt needed to bring the
pool to the ideal level.
6) For volumes other than what is shown, use combinations of various columns.
Example:
For an 11,000 gallon (41.640 Liter) pool with a salt level of 500 ppm (mg/L), the column value
for 1,000 gallons (3.786 Liter) is added to the column value for 10,000 gallons (37.854 Liter),
which gives a total of 230 pounds (104.33 kg) of salt needed to bring your pool salt level up to
the ideal level of 3,000 – 4,500 ppm (mg/L).
Pool/Spa Volume in gallons (Liters)
Current
level of
1,000 2,000
salt
(3,786) (7,572)
ppm
(mg/L)
Pounds (kilograms) of salt needed to attain 3000 ppm (mg/L)
25 50
0
(11) (23)
23 46
250
(10) (21)
21 42
500
(9) (19)
19 38
750
(9) (17)
17 33
1,000
(8) (15)
15 29
1,250
(7) (13)
13 25
1,500
(6) (11)
10 21
1,750
(5) (9)
8 17
2,000
(4) (8)
6 13
2,250
(3) (6)
4 8
2,500
(2) (4)
5,000 10,000 15,000
(18,930) (37,860) (56,790)
125 250 376
(57) (114) (170)
115 230 344
(52) (104) (156)
104 209 313
(47) (95) (142)
94 188 282
(43) (85) (128)
83 167 250
(38) (76) (114)
73 146 219
(33) (66) (99)
63 125 188
(28) (57) (85)
52 104 157
(24) (47) (71)
42 83 125
(19) (38) (57)
31 63 94
(14) (28) (43)
21 42 63
(9) (19) (28)
Ideal 3,000 – 4,500
20,000 25,000 30,000
(75,720) (94,650) (113,580)
501 626 751
(227) (284) (341)
459 574 689
(208) (260) (312)
417 522 626
(189) (237) (284)
376 470 563
(170) (213) (256)
334 417 501
(151) (189) (227)
292 365 438
(133) (166) (199)
250 313 376
(114) (142) (170)
209 261 313
(95) (118) (142)
167 209 250
(76) (95) (114)
125 157 188
(57) (71) (85)
83 104 125
(38) (47) (57)
Table 9
35,000 40,000
(132,510) (151,440)
876 1,002
(398) (454)
803 918
(364) (416)
730 835
(331) (379)
657 751
(298) (341)
584 668
(265) (303)
511 584
(232) (265)
438 501
(199) (227)
365 417
(166) (189)
292 334
(133) (151)
219 250
(99) (114)
146 167
(66) (76)