Salt Chlorinators
Salt chlorinators are a popular form of pool sanitising equipment. They are basically tiny chlorine factories plumbed inline with the pools pump and filter system.
Chlorine is formed by forcing an electrical charge through saline (salty) water. It is really that simple. Mother nature forms chlorine naturally when lightning strikes sea water. Salt is added to the pool (around 5000PPM or 0.5%).
This is a low salt level and does not taste overly salty. In fact many people report that they prefer to swim in salt pools as the water feels softer.
The saline water passes by an electrode which transforms the salt into chlorine. The chlorinated water then returns to the pool. When the chlorine has reacted with contaminants in the water it transforms back into salt.
This is why people who have these types of systems love them so much, there is a continuous cycle happening. The only way salt is lost from the pool is when water is physically removed (backwashing filters, splashing). Evaporation does not dilute the salt level. Significant chlorine savings are made and you only need to add salt into the pool a few times a year. Most salt chlorinators do not have the ability to sense chlorine so sudden fluctuations go undetected. The chlorine production level is adjustable but needs to be adjusted at least seasonally. The electrode needs to be cleaned periodically but new technology has introduced self cleaning models.
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