The Healthier Swimming Directory has moved to piscinasana.wikidot.com in order to provide a clearer, searchable directory as well as interactive forums.
Why the change? Since this directory project began three years ago, the number of locations of safer, non- or low-chlorine pools listed here has expanded to the point that it's difficult to scan for locations in the blog format. The new directory will make it easier to find pools in your area.
An anonymous reader posted a comment that saltwater pools are not really chlorine-free; therefore, s/he thinks saltwater pools shouldn't be listed here. Saltwater pools do use salt to create chlorine which sanitizes the water. Interestingly though, some people report fewer allergic reactions to saltwater pools than to "normal" chlorine pools. There are also reports of no eye stinging or chlorine smells as occurs in "normal" chlorine pools.
I haven't found anything explaining why the saltwater process creates a less noxious environment than the more common chlorination methods, but there does appear to be a difference. Therefore, I think saltwater pools are still worth mentioning here as an alternative to the more harmful norm, but I will add a note to each entry that points out that they are not chlorine-free.
It's also worth pointing out that UV and ozone treated pools are often not chlorine-free though they have much lower chlorine levels than your average chlorinated pool.
Maybe I need to come up with a more accurate title for this directory. Any ideas?
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4 comments:
Have there been any reports or complaints of salt water pools leaving watermarks on the walls of the pool. Also if there is a preffered color for saltwater pools for this problem. And how can the stains be removed?
Ruben
Staining of swimming pool walls and floors is a very complex subject numerous things will cause stains and there are numerous solutions - after 45 years we are still learning
To address the comment above, no there have not been reports of saltwater pools staining.
To address the main post here are a few points. The salt levels in a "salt water" pool are roughly one tenth of that of the ocean (approx 3000ppm for pools).
The reason why people complain less about irritation is because the chlorine that is created in salt water pools is done so at a molecular level (by splitting the NaCl molecules). Chlorine, in its natural state is a gas, so chemicals are required to change it into the liquid or granular state that is most common. It is these additives (or a poor pH balance) that causes irriation or "allergic reactions".
A tip from Australia is to wipe over the stain with a little fairy washing up liquid after washing the stain in a solution of PH -.
( Sodium Bisulphate) This depends on the type of pool but works well on Tile liner & one piece pools.
5 drops of washing up liquid will also break down rafts of scale that sometimes apear on the surface.
But you must really identify why the stain is there. IS it poor water balance ?
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