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FAQ
Residential Applications

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FAQ Index


1. How Does It Work?
2. Will the Salt Pure® water corrode the pump and heater?
3. How can I tell if there is enough salt in the pool?
4. How do I know if the Salt Pure® system is functioning correctly?
5. How much power does it use?
6. Will it affect pH in the pool?
7. What other chemicals will need to be added?
8. What about "shock" dosing or "super chlorination"?
9. What does my pool service technician need to do after a Salt Pure® system is installed?
10. How often does the Salt Pure® system need cleaning?
11. Does the system work?



1.   How Does it Work?


l.     Add a small amount of salt directly to your pool water. You will just be able
       to taste it.

2.    After adding the salt, install three pieces of equipment after your heater - the
       electrolytic cell - with Flow/Salinity sensor - and the power supply unit suited to your
       pool. This would take about two hours per unit.

3.    Once the salt is dissolved in the water and the water flows through the cell, (which is
       the piece installed in line), the salt is "split" by the process of electrolysis to form a
       natural sanitizer which kills germs and bacteria (in the same way that pool chlorine
       does).

4.    The salt itself does not kill the germs. Salt is SODIUM CHLORIDE and when it
       is "split", the CHLORIDE (Hypochlorous Acid) portion is able to kill bacteria and
       algae in exactly the same way that pool chlorine would.

5.    After the CHLORIDE portion has killed the germs and algae it reforms back into salt.
       This process does not consume the salt, it simply uses it over, and over again.

6.    The only salt you will need to add to your pool will be to replace the salt lost
       in splash out, filter back flushing and dilution through rain.

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2.   Will The Salt Corrode The Pump & Heater?

No actually, Salt water only begins to become corrosive at dilutions of 5 - 6,000 parts per million (PPM). While some Chlorine Generators require high salt levels to operate effectively the TMI Salt Pure â Clormatic â system only requires 3,000 PPM.

Actually, chemically treated pool water is more corrosive than a TMI â Salt Pure â pool.


3.   How Can I Tell If There Is Enough Salt In The Pool?


By simply pressing a button on the front of the Power Supply you will get an accurate PPM readout.
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4.   How Do I Know If The Salt Pureâ System Is Functioning Correctly?

A service indicator will flash on your LCD Screen if there is a problem. Additionally the pure sanitizer produced by the SALT PURE â SYSTEM will show up on a standard chlorine test kit. If the level is too high, lower your % output on the front of your Power Supply. If the level is too low, increase the % on the front of your Power Supply or increase filtration time.

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5.   How Much Power Does It Use?

Very little. The largest residential unit - the CM 601 draws 1.25 Amps at 230 Volts.

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6.   Will It Affect My pH In The Pool?

A Salt Pureâ system does not tend to alter the pH - like pool chlorine does. When you add pool chlorine to the water, it will raise or lower the pH depending on its own pH. Liquid chlorine, for example, makes the pH go up, so you must then add acid. Salt Pureâ Systems are practically pH neutral and therefore have little effect on the pH. What little effect they have is generally in the upward direction.

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7.   What Other Chemicals Will Need to be Added?

The things you have to look after are...

  • The pH and Alkalinity
  • The Stabilizer (Cyanuric Acid)- Outdoor pools
  • Calcium hardness
  • If the pH is hard to control, then the Total Alkalinity will need adjusting.
Once the pool is properly balanced (L.S.I. Index), all you should need to do is keep the pH in the correct range and make sure there is stabilizer in the water if you have an outdoor pool.

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8.   What About "SHOCK" Dosing or "SUPER CHLORINATION"?

Generally you will not have to "shock" the pool. The reason for "shocking" a pool is to get rid of "chloramines" which are formed when pool chlorine only partially kills the bacteria and germs etc., in your pool, and are the source of that "chlorine" smell.

Salt Pureâ systems actually "shocks" the water continuously as it operates. On very high bather load pools, especially those that run at higher temperatures, (and with inadequate airflow systems) "chloramines" can build up. An occasional shock with a "non-chlorine" shock, such as Mono Per Sulphate, will assist in keeping the "chloramines" at the desired levels.

"Chloramines" will create scum and grime on the waterline tiles.

"Chloramines" are the biggest health hazard in a pool.

Chlorine Generation mostly prevents the formation of "chloramines" and scum build-up on tiles - making your pool much healthier to swim in.

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9.   What Does My Pool Technician Need To Do After A Salt Pure â System Is Installed?

Everything he used to do but NOT ADD CHLORINE TO YOUR POOL. He will need to add salt as required and we recommend that he read the manual in order to understand how to operate the system.

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10.   How Often Does The Salt Pure â System Need Cleaning?

The cell will reverse polarity every 3 hours and thereby "clean itself'. The cell should be inspected every 3 to 6 months. More often if you have hard water. This usually takes a few minutes.

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11.   Some Say These "Salt Systems Don't Work!"

There are a number of different salt systems on the market and as with any product, some are good (Mercedes?) and some are not so good (Yugo). The TMI Salt Pureâ Clormatic â units meet Health code Requirements, and are approved by UL, and are installed in hundreds of thousands of pools all over the world - both residential and commercial.

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