W
ATER
C
HEMISTRY
G
UIDELINES
(
CONT
’
D
.)
WATER CHEMISTRY MAINTENANCE
(cont’d.)
27
BASIC WATER CHEMISTRY CHART
PROBLEM
Green Algae
Black Algae
Unpleasant Odor,
Burning Eyes
Colored Water
Hard Water
DESCRIPTION
Green Water
Green spots on surface
Slippery surface
Black spots on spa surface
Chlorine-like odor.
Burning sensation in eyes.
Water in newly-filled spa turns
black, blue, or brown when
treated with ozone
Cloudy water
Scaling
CAUSE
Low ozone, bromine, or chlorine levels
Low algaecide levels
Low oxidizer levels
Low algaecide levels.
Combined chlorine and/or pH out of
balance
Copper, iron, or manganese in water
being oxidized by chlorine or ozone
Excessive hardness of makeup water or
building up of dissolved minerals in the
water caused by continued use of spa
chemicals.
REMEDY
Superchlorinate
Brush spa; removing algae
Vacuum spa; removing algae
Increase oxidizer residual
Superchlorinate
Brush spa; removing algae
Vacuum spa; removing algae
Increase oxidizer residual
Superchlorinate.
Balance pH to 7.2-7.6
Adjust pH to 7.2-7.6
Run filter continuously
Vacuum settled material
Use sequestering agent for
prevention
Clean filter
Filter continuously
Adjust pH to 7.2-7.6
Use scale inhibitor
Dilute with makeup water
O
ZONE
U
NIT
Location varies with spa model.
Refer to specifications for
location and take note during
installation positioning.
O
ZONE
:
Y
OUR
SPA
IS
EQUIPPED
WITH
OZONE
AS
THE
SANITIZING
AGENT
. T
HIS
UTILIZES
ULTRAVIOLET
LIGHT
AND
OFFERS
A
“
HANDS
-
FREE
”
ROUTINE
TO
SPA
WATER
CARE
. T
HE
P
H
MUST
BE
MAINTAINED
AND
SHOCKING
MAY
BE
NEEDED
AFTER
HEAVY
BATHER
LOADS
. W
ITH
THE
USE
OF
OZONE
,
THE
PERIODIC
DRAINING
MAY
BE
NEEDED
LESS
FREQUENTLY
,
AND
THE
BROMINE
ODOR
NO
LONGER
AN
ISSUE
. I
T
IS
SUGGESTED
THAT
16-24-
HOUR
CIRCULATION
IS
REQUIRED
TO
EFFECTIVELY
SANITIZE
THE
WATER
,
AND
A
CHLORINE
SHOCK
USED
PERIODICALLY
. C
ONTACT
YOUR
CHEMICAL
SUPPLIER
FOR
MORE
INFORMATION
.
1. T
HERE
IS
NO
TEST
KIT
AVAILABLE
TO
TEST
OZONE
PRESENCE
IN
SPA
WATER
,
ALTHOUGH
A
24-
HOUR
CIRCULATION
PERIOD
IS
RECOMMENDED
FOR
CLEAN
,
CLEAR
WATER
. A
CLEAN
, “
AFTER
RAIN
”
SMELL
WILL
BE
PRESENT
WHEN
YOU
OPEN
YOUR
SPA
COVER
AS
AN
INDICATOR
THAT
THE
OZONE
IS
DOING
IT
’
S
JOB
.
2. A
PROPER
P
H
MUST
BE
MAINTAINED
AND
A
ROUTINE
BROMINE
OR
CHLORINE
SHOCK
IS
SUGGESTED
.
3.
THE
OZONE
SYSTEM
WITH
YOUR
SPA
HAS
AN
E
VER
L
ITE
INDICATOR
MOUNTED
ON
THE
CORNER
OF
THE
SPA
CABINET
. T
HIS
EMITS
A
BLUE
LIGHT
WHEN
THE
OZONE
UNIT
IS
FUNCTIONING
. E
VER
L
ITE
WILL
ONLY
BE
LIT
WHEN
UNIT
IS
IN
FILTRATION
CYCLE
. R
EFER
TO
CONTOL
INFORMATION
AND
ICON
CHART
FOR
FURTHER
INSTRUCTIONS
.
