Aquatic Resources Network

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Thinking about Building?


Thinking about Building?

This group has been created for those interested in building a therapy pool. If you've attended any of our How To Build classes, this is the group for you.

Members: 8
Latest Activity: Aug 22, 2014

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Comment by Charise Boone on March 9, 2010 at 10:53am
We are building a new pool and I would like any feedback from non-chemical pool operators. We are trying to get away from chlorine, bromine or salt. Help!!!
Comment by Sara Firman (Sulis) on March 11, 2010 at 10:35pm
Unfortunately, I believe there is no such thing as a non-chlorine (non-bromine) commercial/ public pool owing to regulations (state codes).

Saline pools generate their own chlorine on site. They still have the same amount of chlorine as a regular pool.

Ultra Violet light is a sanitizer but the pool still has to maintain the minimum amount of chlorine according to state codes. The same with Ozone.

Andrea (founder of this network) has just written an excellent informative post on her blog. Click here.
Comment by Kim Chamberlain (idowatsu) on August 20, 2014 at 5:22pm

I went through this process, regs are usually specific to a certain area. But as alluded to the public pool regs require chlorinated sanitation. My experience is that the salt water is less harsh to my lungs and body but detrimental to the equipment. Make sure to purchase the heavy duty nickel plated heated for optimal longevity of the equipment. The clients here appreciate the salt water sanitation. The PT pool down the street leaves you gassing off chlorine for days.

Comment by Sara Firman (Sulis) on August 20, 2014 at 8:14pm

While doing research for the pool I now work in which combines 'salt chlorination' (a more accurate and transparent way to describe a salt water pool which has only the salt content of a tear drop) with ultraviolet, I've learned that having the secondary system in place (UV or ozone) can enable safe sanitation with a chlorine content of as little as 0.5 ppm.  The secondary system also eradicates chloramine which is the toxic chemical created when organic matter combines with chlorine - it is this chemical which causes the 'chlorine smell'.  As Kim says, salt can be corrosive to pool equipment though modern equipment is often made with this in mind.  Every system has it's downside but the key seems to be careful management of whatever system you do have and understanding how it works.  Our warm pool temperatures for aquatic bodywork also affect the chemistry, just as sun exposure does if you have an outside pool and bather load.  Many factors to consider.

Comment by Karen Cannady on August 21, 2014 at 8:49am

Another alternative is copper ionization.  According to state regulations you still have to use some chlorine with copper ionization but the ppm goes down considerably from 3.0 to 0.5.  So you are using, handling, and are immersed in a lot less chlorine.  If/When I build I will use copper ionization.  

Comment by Sara Firman (Sulis) on August 21, 2014 at 9:02am

Yes, copper ionization is a good alternative, to say UV but there is some question about the future supply as the bars have to be replaced every 2-4 years I understand:  For small pools, a copper-zinc disc system that goes in the skimmer, might be used.

Comment by Karen Cannady on August 21, 2014 at 9:36am

Hi Sulis, Thank you for the link to the copper article.  

Yes, you have to replace the copper bars every few years and the electronic system lasts 23-27 years.  Copper is know to have health benefits (see link below) making it a healthy alternative as well.

Kim, let me know if you'd like additional information about copper ionization.  I can get you a referral from other therapy pools that use it.


Comment by Kim Chamberlain (idowatsu) on August 21, 2014 at 12:30pm

I have ionization which I found to leave blue dying if not kept at the right levels.

Comment by Karen Cannady on August 21, 2014 at 12:52pm

Hi Kim,

May I ask what system you are using?  I'm never seen that in our systems.  Did you call their customer support?  

Comment by Kim Chamberlain (idowatsu) on August 21, 2014 at 2:47pm

the ion level got double the recommended level and everything turned a copper color that took 3 years to get rid of. I was new to my pool then and hadn't worked out how to use it.


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