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purple hayes
Frightened Inmate #2
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Joined: 14 May 2002
Posts: 14462
Location: ON YOUR LEFT!
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 Posted: 09/10/03 - 11:29 Post subject: Peeps with pool knowledge
When your pool has to be open 7 days a week from early morning until the evening, when do you add the chemicals? In the PM after it closes? Do they 'fade' as the day wears on?
I'm asking because I went swimming at the Y pool early yesterday morning and even though I took two showers after that, I still smelled like chlorine and my sinuses were messed up.
I usually go swimming in the late PM and don't normally have the chlorine/sinus problems.
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prohemp
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Joined: 14 May 2002
Posts: 7716
Location: in the cradle of liberty
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Posted: 09/10/03 - 11:31 Post subject:
I'm thinking all day long - the check our pool's levels every hour - so they must make adjustmenst as the day goes on
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cherylpf
crazy cat lady
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Joined: 14 May 2002
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Posted: 09/10/03 - 11:36 Post subject: Re: Peeps with pool knowledge
I hope they are adding chemicals constantly. We used to have to check the chlorine and PH (ha!) hourly for board of health standards. If the PH is whack then you add some scary chemicals (hydrochloric acid, etc) so you do that when no one will be in the pool for several hours. And if the chlorine was too high or low we could turn the chlorinator up or down accordingly while people were in the pool because you have to maintain a certain level of chlorine in the water.
I worked at an outdoor pool so the amount of sun and heat burned off the chlorine (excuse the incorrect scientific speak) and affected how we set the chlorinator. I would think an indoor pool would be a lot more stable...but when I was on swimteam and swimming in an indoor pool I reeked of chlorine constantly. It seems in my experience indoor pools are always highly chlorinated. 
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TriBob
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Joined: 29 Aug 2002
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Location: Lost in Transition
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Posted: 09/10/03 - 11:44 Post subject:
When I lifeguarded, we had a drip pump that fed chlorine constantly to the pool.
Public pools especially Y's are notorious for extreme amounts of chlorine.
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shelflifers
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Joined: 10 Jun 2002
Posts: 18633
Location: Austin, TX
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Posted: 09/10/03 - 11:46 Post subject:
its...DOODY!!!!!!!
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monk25
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Joined: 25 Jun 2002
Posts: 3922
Location: The Beautiful South Shore of L.I. NY
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Posted: 09/10/03 - 11:46 Post subject:
Public pools usually overchlorinate (I worked as a pool lifeguard for 4 years) Not usually a bad thing, though...
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elkid
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Joined: 18 Nov 2002
Posts: 8353
Location: hiding out in Philly
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Posted: 09/10/03 - 11:50 Post subject:
Pool owner here. A chlorine-like smell does not mean that the pool is overchlorinated. It's the opposite: not enough. What you smell are chloramines, formed when insufficient levels of free available chlorine react with ammonia and other nitrogen-containing compounds (sweat, urine, etc.). This results in their only being partially broken down so they create nitrogen chlorides. So essentially you get a stronger chlorine smell in a heavily-used public pool v. a private one because of the greater amounts of sweat and pee in the water. Nice thought, huh?
Free available chlorine (or residual chlorine) is the amount of chlorine in the pool that can sanitize or disinfect the water. Combined chlorine consists of undesirable, bad-smelling, irritating compounds which form when there isn't enough free available chlorine. Add both together, you get total chlorine. You want a high level of available chlorine that can act on foreign substances in the water to keep the pool clean and safe for the swimmers.
Ask the pool people what they use to test the water with - tablets work better than liquid. Make sure they aren't testing the total chlorine level (which many commercial pools do), but the free v. combined ratio. They should also be adding the chemicals steadily because when you add large amounts of chlorine at once, you burn the hell out of your eyes. Plus chlorine is carcinogenic.
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