264
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S AVE THESE INSTRUCTIONS
(264IO) SPA (JET + BUBBLE) ENGLISH 7.5” X 10.3” PANTONE 295U 11/21/2014
English
Page 18
SPA WATER CHEMISTRY AND BALANCE (continued)
Desired level
60 ppm
80 ppm
100 ppm
120 ppm
140 ppm
Volume:
210 gal / 800 L
0.269 Lb
0.358 Lb
0.448 Lb
0.528 Lb
0.627 Lb
121 g
161 g
202 g
238 g
283 g
Volume
Total Alkalinity
From
→
To
8.4
→
7.2
7.8
→
7.2
210 gal
(800 L)
120 ppm
0.028 qt
0.019 qt
26 mL
18 mL
80 ppm
0.018 qt
0.013 qt
18 mL
12 mL
Lowering Total Alkalinity
Amount of Sodium Bisulfate to lower Total Alkalinity
Desired level
20 ppm
40 ppm
60 ppm
80 ppm
Volume:
210 gal / 800 L
0.059 Lb
0.118 Lb
0.178 Lb
0.237 Lb
27 g
53 g
80 g
107 g
Raising Total Alkalinity
Amount of Sodium Bicarbonate to raise Total Alkalinity
Desired level
60 ppm
80 ppm
100 ppm
120 ppm
140 ppm
Volume:
210 gal / 800 L
0.101 qt
0.135 qt
0.169 qt
0.202 qt
0.234 qt
96 mL
128 mL
160 mL
192 mL
223 mL
Amount of Muriatic Acid to lower Total Alkalinity
(Muriatic acid: 31.45%)
pH Adjustment
After the total alkalinity has been lowered to 120 ppm or raised to 80ppm and the pH is still high or low, you
can adjust it using the following chart.
Lowering pH
Lowering pH Using Muriatic Acid
Volume
Total Alkalinity
From
→
To
8.4
→
7.2
7.8
→
7.2
210 gal
(800 L)
120 ppm
0.071 Lb
0.047 Lb
32 g
21 g
80 ppm
0.047 Lb
0.032 Lb
21 g
14 g
Lowering pH Using Sodium Bisulfate