LTR20231170
9/23/2023
www.calspas.com
19
120
140
160
180
100
80
Ideal TA balance
Add an alkalinity
increaser
Add an alkalinity
decreaser
60
40
20
TA too low
wildly
TA too high
pH will be too high
to stabilize pH
TA
balance
200
225
250
275
175
150
Ideal CH balance
CH too low
Causes equipment
corrosion
CH too high
Causes scale to
deposit on spa and
equipment
Add a calcium
hardness increaser
Dilute the spa
with soft water
125
100
75
CH
balance
9
