Membership Directory & Resource Guide - 2018 - 36

TECHNICAL
BULLETINS
Reprinted with permission
of Pebble Technology International
TECHNICAL
BULLETINS

TECHNICAL BULLETIN * pg 1 of 3

TECHNICAL
INTERIOR
TECHNICALBULLETIN
BULLETIN- -PREVENTING
PREVENTING
INTERIOR
FINISH
FOR
CYANURIC
TECHNICAL
BULLETIN - &
PREVENTING
INTERIOR
FINISH
FINISHDETERIORATION
DETERIORATION
&TESTING
TESTING
FOR
CYANURIC
ACID
DETERIORATION
& TESTING FOR CYANURIC ACID
ACID

Defining Cyanuric Acid
Defining acid
Cyanuric
Cyanuric
(CYA)Acid
is NOT a chlorine - it has no sanitation properties. Cyanuric acid protects any type of
Cyanuricfrom
acidUV
(CYA)
is NOTdestruction.
a chlorine -Cyanuric
it has no
Cyanuric
acid protects
type of
chlorine
(sunlight)
acidsanitation
is referredproperties.
to as "stabilizer"
or "conditioner"
soany
there
chlorine
Cyanuric
toideal
as "stabilizer"
"conditioner"
so there
are
three from
namesUV
for(sunlight)
the same destruction.
product. When
cyanuricacid
acidisisreferred
present in
ranges, theor
chlorine
will remain
1
effective
to 10 times
longer.
are three3 names
for the
same
product. When cyanuric acid is present in ideal ranges, the chlorine will remain

effective 3 to 10 times longer.1
Defining Chlorines
There
areChlorines
several different type of chlorine products used to sanitize swimming pools. The most commonly
Defining
used
includes
the following
chemical
name: products used to sanitize swimming pools. The most commonly
There are several
differentbytype
of chlorine
used includes the following by chemical name:
* Sodium hypochlorite (liquid chlorine / non-stabilized)
** Calcium
chlorine//non-stabilized)
non-stabilized)
Sodiumhypochlorite
hypochlorite(granular
(liquid chlorine
** Sodium
dichloroisocyanurate
(granular
chlorine
/ stabilized)
Calcium hypochlorite (granular chlorine / non-stabilized)
* Trichloroisocyanurate (3" tablet / stabilized)
* Sodium dichloroisocyanurate (granular chlorine / stabilized)
* Trichloroisocyanurate (3" tablet / stabilized)
Di-chlor and Tri-chlor have cyanuric acid
Please notice the last two highlighted chlorines.
(stabilizer/conditioner) added to the chlorine product. There is NO cyanuric acid in liquid chlorine or cal hypo.
Di-chlor and Tri-chlor have cyanuric acid
Please notice the last two highlighted chlorines.
(stabilizer/conditioner)
added
to
the
chlorine
product.
There
is
cyanuric
acid in liquid
or cal hypo.
When a stabilized chlorine is used in a swimming pool, the cyanuricNO
acid
level increases.
One 7chlorine
ounce tri-chlor
3" tablet is approximately 55% cyanuric acid so the cyanuric acid increase per pound in a 10,000 gallon pool
2
When
stabilized
chlorine is used
in a swimming
pool,
the cyanuric
acid
One 7ofounce
tri-chlor
The percentage
of stabilizer
in granular
di-chlor
is between
50level
- 58 increases.
%. The increase
cyanuric
will
be 7a ppm.
2
3" tablet
is approximately
55% iscyanuric
the cyanuric
acid are
increase
pound
a 10,000
If 3" tablets
used, per
it would
be in
best
to use agallon
non- pool
acid
per pound
in 10,000 gallons
betweenacid
6 - so
7 ppm.
2
Theproduct
percentage
in liquid
granular
di-chlor
is between
50 -is58
The increase
of cyanuric
will be 7 ppm.
stabilized
chlorine
such of
as stabilizer
cal hypo or
chlorine
to shock
as there
no%.
cyanuric
acid in those
products.
When in
a freshly
pool
is being adjusted
for2 swimming,
acidit would
manufacturers
suggest
If 3" tabletscyanuric
are used,
be best to
use a nonacid per pound
10,000 filled
gallons
is between
6 - 7 ppm.
raising
the
CYA
to
30
-
50
ppm.
In
a
southern
climate
on
a
freshly
filled
pool
that
will
be
using
3"
tablets,
stabilized chlorine product such as cal hypo or liquid chlorine to shock as there is no cyanuric acidthe
in those
cyanuric
acid
level ashould
befilled
adjusted
- 30 ppm.
products.
When
freshly
pooltois25being
adjusted for swimming, cyanuric acid manufacturers suggest

raising the CYA to 30 - 50 ppm. In a southern climate on a freshly filled pool that will be using 3" tablets, the

In-Line
Stack
Feeders
cyanuric
acidChlorine
level should
be adjusted to 25 - 30 ppm.
The convenience of dropping tablets in a tube for sanitation is popular but what must be understood is that
this
is a Stack
method
of allowing
a continuous feed of chlorine to a pool when the pump is running. The warmer
In-Line
Chlorine
Feeders
the
water,
the
faster
the
tablets
will dissolve
and potentially
raiseiscyanuric
rapidly.
The convenience of dropping tablets
in a tube
for sanitation
popularlevels
but what
must be understood is that

this is a method of allowing a continuous feed of chlorine to a pool when the pump is running. The warmer

the water. The tablets will not "shock" the pool to regain the proper sanitary properties of the water. Using
a non-stabilized liquid or granular chlorine for shocking will prevent high cyanuric acid levels from increasing
to a level of deterioration.

15540 N 77th Street | Scottsdale, AZ 85260 | 800.937.5058 | pebbletec.com

Technical Bulletins

Sanitation
to be
donethe
primarily
andand
liquid
or granular
chlorine
is the
preferred
method to shock
the water,isthe
faster
tabletsby
willtesting
dissolve
potentially
raise
cyanuric
levels
rapidly.
the water. The tablets will not "shock" the pool to regain the proper sanitary properties of the water. Using
a non-stabilized liquid or granular chlorine for shocking will prevent high cyanuric acid levels from increasing
Sanitation
to be done primarily by testing and liquid or granular chlorine is the preferred method to shock
to
a level ofisdeterioration.

15540 N 77th Street | Scottsdale, AZ 85260 | 800.937.5058 | pebbletec.com
NPC MEMBERSHIP DIRECTORY & RESOURCE GUIDE 36

http://www.pebbletec.com

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