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Thread: Spectralight UV Systems???

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    lka674's Avatar
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    Spectralight UV Systems???

    Has anyone out there had or used one of these systems?

    I have recently discovered that VOC's seem to be what has triggered an adult onset of severe, persistent and uncontrolled asthma. I'm attempting to reduce my exposure as much as possible, so in doing that I'm being forced to rethink our pool sanitation methods.

    Would love any information that anyone can provide on UV systems.

    Many thanks,
    Laura
    Pool grand opening Sept 2010. 100% sun exposure. Beach entry with fountain, IG gunite pool, approx 11,000g. Hayward HK sand filter. Intelliflow VS 350 pump w/ max flow rate 160 gpm. Dolphin (cordless) M5 Liberty pool cleaner. The pool has waterfall at one end with a tanning ledge and a spa at the other end that has a spillway into the pool and there is a water shear falling from the pool equip wall into the spa. DH did a beautiful job of designing it himself!

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    duraleigh's Avatar
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    Re: Spectralight UV Systems???

    Search "UV" on this forum. You will not find many favorable responses, if any. If your pool is outside, UV will not be an adequate sanitizer.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    lka674's Avatar
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    Re: Spectralight UV Systems???

    Thanks! Will do!
    Pool grand opening Sept 2010. 100% sun exposure. Beach entry with fountain, IG gunite pool, approx 11,000g. Hayward HK sand filter. Intelliflow VS 350 pump w/ max flow rate 160 gpm. Dolphin (cordless) M5 Liberty pool cleaner. The pool has waterfall at one end with a tanning ledge and a spa at the other end that has a spillway into the pool and there is a water shear falling from the pool equip wall into the spa. DH did a beautiful job of designing it himself!

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    Re: Spectralight UV Systems???

    I am sorry to hear about your condition.

    Your circumstance is very specific. Most of the knowledge shared on the forum is about indoor pools or spas where UV in addition to chlorine can make sense, or residential outdoor pools where it generally doesn't. But it sounds like you are looking for a chlorine-free outdoor pool. This is an expensive proposition that is not usually recommended here since the chlorine level needed in a residential pool is rarely of any concern. Of course, you have an exception, and your health is worth expense.

    In the process of oxidizing organics, chlorine can produce VOCs. In outdoor pools, this is almost never a problem since the release is so very low, and of course they are released into a huge, perfectly ventilated area. Going chlorine-free is not done with UV alone, and it will be expensive. The only question in my mind is whether the VOC level in the outdoor air near your pool is increased in any noticeable way by chlorine doing its job of oxidizing organics. In a well-maintained pool, most of the chlorine loss is UV burn-off from the sun which doesn't create VOCs.

    I don't have expertise in this to do anything more than ask questions on whether the level is of significance. If it is, you'll want to look at the expensive options. If it's not, you may want to continue with chlorine and keep your pool well-maintained so that you're never oxidizing large amounts of organics at a time. Perhaps chem geek can provide some level of quantification.

    My gut feeling is that the VOCs in the air around your chlorinated pool are several factors lower than the levels you'll find indoors.
    Outdoor 14,000 gallon IG plaster pool built in 2000 with spillover spa, 2 hp WhisperFlo pump with MagneTek motor, Sta-Rite cartridge pool filter with 300 ft2 filtration area and 0.33 gpm/ft2 filtration rate, Aquabot Rapids 4WD robotic pool cleaner, Raypak digital gas heater, and Intermatic mechanical timer located in the Dallas-Fort Worth metroplex

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    Administrator Leebo's Avatar
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    Re: Spectralight UV Systems???

    Quote Originally Posted by danacc
    But it sounds like you are looking for a chlorine-free outdoor pool.
    Quick note......we seldom if ever recommend a "chlorine-free" pool.....anywhere. The only time we may is due to health issue, in which often we'd suggest Baquacil.

    Can you describe your symptoms and what is triggering the asthma??

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