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Thread: Non Clorine Shock?

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    Non Clorine Shock?

    Why is it that some people recommend non chlorine shock before closing a inground pool?

    What would be wrong with closing with regular bleach if anything?
    Inground Grecian 20,000 gallons vinyl liner
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    What would be wrong with closing with regular bleach if anything?
    Absolutely nothing. Don't know who recommends non-chlorine shock.....I've never been a big fan for the vast majority of pools.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    The only thing I can think of is that very high chlorine levels can sometimes cause minor damage to the cover. I shock the day before, instead of the moment before, so the chlorine level isn't as high when the cover goes on. But as long as you don't go wild with extra chlorine the moment before covering there probably wouldn't be a problem in any case.
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    Thanks.

    The pool person is the one who said you should use non chlorine shock to close the pool. I should have known better than to listen to them.
    Inground Grecian 20,000 gallons vinyl liner
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    Does the non chlorine shock add anything to the pool that I don't want?
    Inground Grecian 20,000 gallons vinyl liner
    Hayward 250 BTU Propane heater
    Hayward DE Filter
    1 HP Northstar Pump
    Spill Over Spa

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    Non-chloprine shock has some very minor disadvantages for outdoor pools. It tends to test as CC, which can confuse things quite a bit sometimes. And it causes problems for ORP sensors. And it costs more than chlorine. Plus it does add some things that you might eventually have problems with if you use it all the time for a very long time, but nothing so dramatic as CYA or CH.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Well, a non-chlorine shock shouldn't be costing you more than a chlorine shock. Calcium hypochlorite and sodium dichlor shocks are usually a little more expensive per pound than something like potassium monopersulfate. I suppose it just depends on where you shop, though. I'm not aware of any drawbacks either to using a non-chlorine shock on a regular basis. It's a healthy thing to do for your pool, weekly if possible. However, if there are some drawbacks, I'm now setting off to find out, because that's something that everyone should know, for sure. If you've got some specifics, please post, that'd be a huge help.
    Semper Fi and Happy Pooling.

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    dudeguy37 wrote:
    I'm not aware of any drawbacks either to using a non-chlorine shock on a regular basis. It's a healthy thing to do for your pool, weekly if possible
    .Dude, welcome to the forum. You will not find much support for shocking weekly. Typically, we'll advocate shocking when conditions and/or testing calls for it but not on an arbitrary schedule.

    I have no first hand knowledge of the price of MPS but it seems like I've seen posted on this forum that it is dramatically more expensive than chlorine. Someone else will chime in soon to confirm or dispell that, tho.
    Dave S. - Forum owner
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    Non-chlorine shock is slightly less expensive that dichlor or cal-hypo from most sources, but bleach is less expensive than any of those and will do the same job just as well (or better).

    The reason shocking weekly is often recommended elsewhere is that they assume you are not taking proper care of your pool. If you own a good test kit and spend a couple of minutes every day taking care of the water balance then there will hardly ever be any reason to shock and you will save substantial amounts of money compared to shocking weekly.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    You're very right. A lot of the customers I help every day do not take the best care of their pool. L.A. and the surrounding areas (what I work with regularly) are full of people who work an average of 50-70 hour weeks, and spend all the other time taking kids to and from school/sports/etc. with fast food meals in between. They enjoy their pool and take time to put into it a total of maybe...5 min. a week if that. It takes me (and other employees) urging them to put more time and care into it, and to enjoy it! They learn to hate their pool because they don't take proper care, and don't take time to enjoy a nice swim either, so it only becomes a money consumption. So it was my mistake to make a generalization on a forum where most people probably take good care =)
    Semper Fi and Happy Pooling.

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    Dudeguy,

    I hear you loud and clear. Every now and then, I get into a discussion with others who own pools but are the five minutes a week type. About 15 seconds into the first discussion of anything other than pH, they get that blank "please go away" look and I realize the conversation is pointless from there on.

    The folks here (that stick around for any length of time) are a different breed. They are really interested in the "why's" of pool care. In addition, there are some really good chemists on here that are searching for answers that are not even discussed in the pool industry.

    All in all, it's a terrific site to discuss particular issues with particular pools and pick up a ton of great knowledge along the way. We hope you'll stick around with us.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Dudeguy, I hear ya man!!! Most of my customers won't even take 1 min once a summer to do a dip strip test I'm glad to see someone here that can understand my frustration!! Thousands of $$s on repair/ replacement doesn't seem to sink in We may need to find a little corner of this site to tell each other "the things stupid pool owners do" ,we could set up a 'stupidest pool owner competition', for the ones who just don't get the fact that the pool needs (at least!!) weekly care/ attention.

    I know that the less they do means more work for us, but I'd rather work a 50 hr week and have them have a good pool owning experience

    Good to 'know' you dude! -- Ted
    Luv& Luk
    -Ted

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

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