Cal Spas PATIO Owner's Manual page 53

54
180
TA too high
pH will be too high 160
140
to stabilize pH
120
TA
100
Ideal TA balance
balance
80
60
TA too low
40
wildly
20
275
CH too high
250
Causes scale to
deposit on spa and
225
equipment
200
CH
175
Ideal CH balance
balance
150
125
CH too low
100
Causes equipment
75
corrosion
53
Add an alkalinity
decreaser
Add an alkalinity
increaser
Dilute the spa
with soft water
Add a calcium
hardness increaser
49