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It is important to maintain the proper water balance. Your pool water is constantly changing throughout the year. Maintaining the proper relationship between the different chemical levels is constantly being effected by rain, body oils & cosmetics, dirt, bathers, freshly added tap water and many other factors. Proper water chemistry is essential to keep a swimming pool clean and safe for swimmers. Proper oversight of your water balance can help to avoid a multitude of problems including skin and eye irritation, algae, corrosion, discolored water, pool surface degradation and damage to pool equipment.

Proper Water Balance Parameters:

Free Available Chlorine
1 to 3 parts per million (ppm)
Total Available Chlorine
1 to 3 parts per million***
*** NOTE: Should be the same as Free chlorine
pH
7.2 to 7.6
Total Alkalinity
80 to 120 ppm
Calcium Hardness
200 to 400 ppm
Cyanuric Acid (stabilizer)
20 to 60 ppm
Metals
0 ppm
Total Dissolved Solids (TDS)
Below 1200 ppm
Salt (Pools with Generators)
2800 to 3200 ppm

High pH above 7.8, high alkalinity above 120 ppm or high calcium hardness levels above 450 ppm will cause a saturation problem and drive metallic contaminants from the water resulting in stains and discolorations. Pools with exposed aggregate finishes should be maintained below 250 ppm.

Low pH will etch the pool finish and damage the pool equipment usually resulting in pool surface stains and discolorations.

Low alkalinity allows the pH to swing up or down causing aggressive or scaling water depending on the pH of rain and sanitizers. This can result in damage to poolheaters and cause pool surface stains and discolorations.

Low calcium hardness will create aggressive water. This can etch the pool finish as well as cause aggressive water that will strip metals out of heaters and any other metallic components the water comes into contact with as the pool is circulating.

Swimming Pool Water Chemistry

Download the Advantis Pool Book 2011.

Enter Your Water Test Results

Pool Spa Test Results.

Troubleshooting

For your convenience, several links have been provided to assist you with water troubleshooting.

Problem Visualizer

With visualizer, you can match pool or spa water problem with theirs. Click Here

Salt Chart

Salt Demand (pounds) Pool Volume (Gallons)

Current Salt Level (ppm)
8,000
10,000
12,000
14,000
16,000
18,000
20,000
22,000
24,000
26,000
28,000
30,000
32,000
34,000
36,000
38,000
40,000
0
213
266
320
373
426
479
533
586
639
692
746
799
852
905
959
1012
1065
200
200
250
300
350
399
449
499
549
599
649
699
749
799
849
899
949
999
400
186
233
280
326
373
419
466
513
559
606
652
699
746
792
839
885
932
600
173
216
260
303
346
389
433
476
519
563
606
649
692
736
779
822
866
800
160
200
240
280
320
360
399
439
479
519
559
599
639
679
719
759
799
1000
146
183
220
256
293
330
366
403
439
476
513
549
586
623
659
696
732
1200
133
166
200
233
266
300
333
366
399
433
466
499
533
566
599
632
666
1400
120
150
180
210
240
270
300
330
360
389
419
449
479
509
539
569
599
1600
107
133
160
186
213
240
266
293
320
346
373
399
426
453
479
506
533
1800
93
117
140
163
186
210
233
256
280
303
326
350
373
396
419
443
466
2000
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
379
399
2200
67
83
100
117
133
150
166
183
200
216
233
250
266
283
300
316
333
2400
53
67
80
93
107
120
133
146
160
173
186
200
213
226
240
253
266
2600
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
2800
27
33
40
47
53
60
67
73
80
87
93
100
107
113
120
126
133
3000
13
17
20
23
27
30
33
37
40
43
47
50
53
57
60
63
67
3200
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3400
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
3600
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Ideal 1lb salt - 3200 37.55 ppm

Number of 40# Bags to Add

Current Salt Level (ppm)
8,000
10,000
12,000
14,000
16,000
18,000
20,000
22,000
24,000
26,000
28,000
30,000
32,000
34,000
36,000
38,000
40,000
0
5.3
6.7
8.0
9.3
10.7
12.0
13.3
14.6
16.0
17.3
18.6
20.0
21.3
22.6
24.0
25.3
26.6
200
5.0
6.2
7.5
8.7
10.0
11.2
12.5
13.7
15.0
16.2
17.5
18.7
20.0
21.2
22.5
23.7
25.0
400
4.7
5.8
7.0
8.2
9.3
10.5
11.7
12.8
14.0
15.1
16.3
17.5
18.6
19.8
21.0
22.1
23.3
600
4.3
5.4
6.5
7.6
8.7
9.7
10.8
11.9
13.0
14.1
15.1
16.2
17.3
18.4
19.5
20.6
21.6
800
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
1000
3.7
4.6
5.5
6.4
7.3
8.2
9.2
10.1
11.0
11.9
12.8
13.7
14.6
15.6
16.5
17.4
18.3
1200
3.3
4.2
5.0
5.8
6.7
7.5
8.3
9.2
10.0
10.8
11.7
12.5
13.3
14.1
15.0
15.8
16.6
1400
3.0
3.7
4.5
5.2
6.0
6.7
7.5
8.2
9.0
9.7
10.5
11.2
12.0
12.7
13.5
14.2
15.0
1600
2.7
3.3
4.0
4.7
5.3
6.0
6.7
7.3
8.0
8.7
9.3
10.0
10.7
11.3
12.0
12.6
13.3
1800
2.3
2.9
3.5
4.1
4.7
5.2
5.8
6.4
7.0
7.6
8.2
8.7
9.3
9.9
10.5
11.1
11.7
2000
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
2200
1.7
2.1
2.5
2.9
3.3
3.7
4.2
4.6
5.0
5.4
5.8
6.2
6.7
7.1
7.5
7.9
8.3
2400
1.3
1.7
2.0
2.3
2.7
3.0
3.3
3.7
4.0
4.3
4.7
5.0
5.3
5.7
6.0
6.3
6.7
2600
1.0
1.2
1.5
1.7
2.0
2.2
2.5
2.7
3.0
3.2
3.5
3.7
4.0
4.2
4.5
4.7
5.0
2800
0.7
0.8
1.0
1.2
1.3
1.5
1.7
1.8
2.0
2.2
2.3
2.7
2.8
3.0
3.2
3.3
 
3000
0.3
0.4
0.5
0.6
0.7
0.7
0.8
0.9
1.0
1.1
1.2
1.2
1.3
1.4
1.5
1.6
1.7
3200
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3400
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
3600
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute
Dilute