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e-clear vs salt chlorination
How does it sanitize the water?
| e-clear |
salt |
E-clear produces powerful natural oxidizers through an advanced electrolysis of water (H2O) technology.
The e-clear natural oxidation technology is combined with a trace amount of copper ionization to provide 100% protection against waterborne pathogens.
E-clear does not require salt.
Saturated levels of Oxygen and a small copper ion residual in the pool ensures there is an effective sanitizing residual in the pool at all times, even when the pumps are not running. This feature enables e-clear pools to operate 100% chlorine free.
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Salt chlorinators produce chlorine gas via
electrolyses of salt (NaCl).
Chlorine gas is converted to Sodium Hypochlorite
(liquid chlorine/bleach) in the swimming pool
water.
The process of generating chlorine also produces
sodium hydroxide, NaOH (sodium hydroxide or
caustic soda) in the water.
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What sanitizing molecules/oxidizers
are produced?
| e-clear |
salt |
Within a sealed chamber, the natural oxidizers
OH-, O1-, H2O2 and O2 are generated via electrolysis from the
water (H2O) molecule itself.
Saturation levels of dissolved oxygen (DO) in the pool is combined with a trace levels of
copper ions to provide a long-lasting, stable
and healthy sanitizing and algaecidal residual.
For some applications also combines UV.
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In water, Sodium Hypochlorite forms the oxidizer
Hypochlorous Acid (HOCL).
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Is it 100% chlorine free?
| e-clear |
salt |
Yes.
O2 and copper ions provide an effective and
long-lasting sanitizing residual in the swimming
pool.
e-clear does not require any chlorine.
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No.
A saltwater pool is not chlorine-free; it simply
utilizes a chlorine generator instead of direct
addition of chlorine.
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How powerful are the oxidizers,
i.e. What are their respective Oxidation
Reduction Potential (ORP) values?
| e-clear |
salt |
Powerful natural oxidizers with High ORP Values
(click here
for ORP Table):
OH- (2.05), O1- (1.78), H2O2 (Liquid Oxygen
- 1.3) and O2 (0.94)
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Average ORP Values (click here
for ORP Table):
Sodium Hypochlorite (0.69), HOCL (1.1)
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How much oxidation
is produced?
| e-clear |
salt |
Very high and constant oxidation
output.
Entry Level Patented Stack anode design with
autocatalytic oxidation generates ~40,000g oxidizers per hr.
Commercial Multiple Stack anode systems are
custom made to match bather load.
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Highly variable depending on bather load, ie
chlorine reacting with organic matter reduces
available HOCL levels.
Some chlorinators do not generate enough chlorine
and requires addition of chlorine manually.
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Are the oxidizers
harmful to the swimmer?
| e-clear |
salt |
No, e-clear is 100% non-toxic.
Highly reactive e-clear oxidizers are produced
in a sealed chamber, away from the swimmer and
not in the swimming pool itself.
In the swimming pool water, Oxygen and Ionization
provide water that is sanitized yet healthy
and therapeutic, soft and gentle.
No corrosion, red eyes, dried out hair or skin.
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Yes, with salt water pools you are still swimming
in chlorine, which is toxic and harmful to the
swimmer.
HOCL, an aggressive and corrosive oxidizer,
is produced in the swimming pool itself.
HOCL is absorbed through the skin and produces
harmful reactive O1- radicals within living
cells.
Although salt makes the water feel softer,
HOCL is harmful and attacks the skin, hair and
eyes of swimmers.
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Does it form disinfection
byproducts (DBPs)?
| e-clear |
salt |
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Yes, chlorine generated from salt binds organic
matter in water to form harmful organo-chlorines
or DBPs such as the Trihalomethanes (THMs).
The predominant THM is Bromoform (Confirmed
carcinogen in animals).
Bromoform is not as volatile as chloroform
and has been shown to accumulate to very high levels in the
pool. Bromoform is absorbed mainly through the
skin and inhalation.
Recent studies have shown Bromoform is highly genotoxic and readily absorbed through the skin.
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Does it give off odours/gasses?
| e-clear |
salt |
No chloramine gas is produced. Therefore no 'chlorine' odours and no toxic gasses are
generated
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Yes, since salt chlorinators generate chlorine,
salt pools generate chloramine gas producing a strong 'chlorine'. Chloramine gas is produced
when chlorine binds sweat, urine and organic
matter.
Chloramines are highly aggressive and toxic
when inhaled and significantly increases the
risk of developing bronchiolitis, asthma and
allergies.
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Is it eco-friendly
and water wise?
| e-clear |
salt |
Yes.
Does not generate any persistant organic pollutants
(POPs)/ DBPs and no greenhouse gas emissions.
Water is free from harmful chemicals and pollutants
so swimming pools can be back washed directly
to irrigation.
Energy and Water efficient.
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Not Eco-friendly.
Salt chlorinators have been banned in a number
of states in the USA and areas of Australia
due to harmful salinification of natural water
ways. Urban salinification is becoming a growing
environmental concern.
Salt chlorination also produces greenhouse
gasses and harmful POPs including Bromoform.
Not water wise. Due to high salt levels and
pollutants salt pools can not be back washed
directly to irrigation.
Salt chlorinators have a high electrical consumption.
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How efficient is the
sanitation in heated water?
| e-clear |
salt |
Very efficient.
Due to the high oxidation output e-clear is
highly efficient in heated water, even at temperatures
exceeding 32oC.
Copper ionization, which is unaffected by heat,
provides a lasting residual even in warm water.
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Not efficient.
Since salt chlorination generate chlorine, salt chlorination does not sanitize efficiently
at temperatures exceeding 32oC,
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Does it require stabilizing
chemicals?
| e-clear |
salt |
No, e-clear sanitation is not affected by sunlight
(UV) and requires no stabilizing chemicals.
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Yes, since salt chlorinators
produce chlorine and chlorine is destroyed by
sunlight (UV), salt pools require stabilizing
chemicals such as cyanuric acid. |
Is the sanitation
pH dependent?
| e-clear |
salt |
Yes, pH must be managed and maintained at neutral
pH, ie pH6.8 - 7.2.
pH is very stable due to high levels of Dissolved
Oxygen and absence of chemicals in the water,
so e-clear pools require ~10x less HCL than
chlorine pools.
Oxidation efficiency decreases above pH7.2.
Acid management is required to maintain pH below
7.2. Pool acid, a food grade HCL or citric acid
is recommended. Since the pH reaction goes to
completion immediately water remains chemical
free.
No alkaline management required. Even if pH
drops to 6.8 water remains soft, gentle and
non-corrosive since water is chemical free.
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Yes.
pH sensitive with optimal range between pH
7.2 and 7.6.
When the HOCL is used up what is left is NaOH
(sodium hydroxide/caustic soda). This causes
the pH of the pool to rise. Acid consumption is salt pools are therefore
higher than that of chlorine pools.
Above pH7.6 oxidation efficiency decreases
rapidly due to reduction in HOCL oxidizer levels.
Below pH 7.2 water becomes highly aggressive,
corrosive and burning, due to increase in HOCL
levels.
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How corrosive is it?
| e-clear |
salt |
Not corrosive.
Oxygen converts calcium in the water to a
soft bicarbonate form.
This results in water that is soft and gentle.
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Salt and chlorine pools both produce HOCL oxidizers
which are very corrosive.
Since salt acts as an electrolyte in water
this increases corrosion via electrochemical
galvanic corrosion.
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