other sanitizers

Feb 7, 2019
20
Missouri
#1
I have seen quite a few posters on here state that ultraviolet is ineffective for an outdoor pool. Is there any true data to back this up, or just theory? Because some people I have talked to seem to swear by it.
 
OP
OP
M
Feb 7, 2019
20
Missouri
#2
I've read the articles. But they say simply that UV/Ozone are not a replacement for chlorine, which I would agree with wholeheartedly. But they do not say they are "ineffective". They do not say anything about the sun's UV-A and UV-B rays versus a UV system's UV-C rays in terms of how effective their respective rays are at killing pathogens and neutralizing chloramines.

UV Sanitizers burn very little chlorine - with data from research

The above post's author's conclusion:

1) The chlorine consumption by a 254nm UV sanitizer is negligible and
2) The germicidal effect of the 254nm UV light may reduce the work that the chlorine has to do
 
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ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
3,650
Northern NJ
#3
I've read the articles. But they say simply that UV/Ozone are not a replacement for chlorine, which I would agree with wholeheartedly. But they do not say they are "ineffective". They do not say anything about the sun's UV-A and UV-B rays versus a UV system's UV-C rays in terms of how effective their respective rays are at killing pathogens and neutralizing chloramines.

UV Sanitizers burn very little chlorine - with data from research

The above post's author's conclusion:

1) The chlorine consumption by a 254nm UV sanitizer is negligible and
2) The germicidal effect of the 254nm UV light may reduce the work that the chlorine has to do
Copying from the last post of that thread:

This subject has been discussed Ad-nauseam on the forum for years. UV of any kind does not address bulk water concerns nearly as well as Chlorine, and that's the bottom line.
 

JohnT

Admin
Mod Squad
TFP Expert
Apr 4, 2007
9,466
SW Indiana
#4
Very little benefit in a residential pool.

Kind of like washing your car every day. Does it keep it cleaner? Yes. Is it worth the money? Probably not.

If you regularly have strangers in the pool or have a regular user of the pool who has immune system issues or other health problems that might put them at greater risk of serious problems in the event of exposure to some pathogen in the pool, it might be worth the money. Otherwise you are spending money with virtually no return.
 

Donldson

TFP Expert
LifeTime Supporter
In The Industry
Jun 12, 2009
3,300
NW Ohio
#5
Do the people you know who swear by UV have any data? Or do you only demand that from the people who aren't saying what you want to believe?

The post you reference states conclusively that UV consumes chlorine but only suggests that it may offer some supplemental action to assist chlorine. Being a sample size of one aside, that's not exactly high praise of UV.