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Who has a pool...need advice

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Ed_McCarron:
Bleach is aqueous sodium hypochlorite.  Its pretty weak.  Thats why the 25 gallons.

Shock is simply an different chlorine containing solution.

A few of the water treatment plants I've done work in will use bleach in a pinch to decontaminate their wells.

Clorox actually mentions using it to chlorinate kiddy pools on their website.

mccoy178:
I happen to build pools for a living.  My suggestion on the algae is to lower your PH to 7.2 or around there and pour your shock in at night.  I would recommend 8-12 gallons.  Sunlight burns the liquid chlorine out of the water.  By putting it in at dusk, it will be effective through the night and turn the green into the cloudy skeletons that you vacuum out.  If you put the chlorine in during sunlight, it typically burns off in a couple hours.  After you've given the pool a good shock, raise the PH back up, as low ph is not good.


--- Quote from: hulkster on October 12, 2007, 09:57:24 am ---not to change the subjet but...

i have a pool, and we have to close it soon.  is this hard to do?  i bought a cover, and plugs for all the holes (heh...plugs for the holes) but the part im worried about is blowing out the line with a vacuum.  i have a shop vac, but ive heard that closing the pool requires taking apart the filter or something.  is that true?  ill probably end up hiring someone to come out and close it for me the first time so i can learn, but wont if you guys can give me a good head start.

--- End quote ---

Is it an above ground or inground?  I can walk you through it.

xar256:

--- Quote from: mccoy178 on October 12, 2007, 11:39:27 am ---I happen to build pools for a living.  My suggestion on the algae is to lower your PH to 7.2 or around there and pour your shock in at night.  I would recommend 8-12 gallons.  Sunlight burns the liquid chlorine out of the water.  By putting it in at dusk, it will be effective through the night and turn the green into the cloudy skeletons that you vacuum out.  If you put the chlorine in during sunlight, it typically burns off in a couple hours.  After you've given the pool a good shock, raise the PH back up, as low ph is not good.

--- End quote ---

Agreed.  It is always best to shock after sunset and leave the pool uncovered.  Also be sure to check your stable chlorine as well (pucks/sticks/etc).  The shock is an unstable chlorine solution that burns off in direct sunlight.  The stable chlorine is what keeps the chlorine in your pool during normal use.  If the stable chlorine is low, that may be a cause for your algae problems as well.

Typical treatment process for Algae problems: Shock, wait for chlorine levels to normalize, vacuum dead stuff, then heavy algicide.  Depending on how bad it is you may need to repeat.  Be sure to use the correct amounts for your size of pool.

And don't use bleach to shock.  Bleach is more stable than shock, and if you bring the levels high enough to kill an algae bloom, it's gonna damage your liners/covers, and any other plastics in the water.  You "can" use it place of normal stable chlorine, but from what I've seen, you'll appreciate the convenience of stick/pucks overall.  They are MUCH easier to regulate chlorine levels.

<edit> My Engrish needs work  :banghead:

hulkster:

--- Quote from: mccoy178 on October 12, 2007, 11:39:27 am ---I happen to build pools for a living.  My suggestion on the algae is to lower your PH to 7.2 or around there and pour your shock in at night.  I would recommend 8-12 gallons.  Sunlight burns the liquid chlorine out of the water.  By putting it in at dusk, it will be effective through the night and turn the green into the cloudy skeletons that you vacuum out.  If you put the chlorine in during sunlight, it typically burns off in a couple hours.  After you've given the pool a good shock, raise the PH back up, as low ph is not good.


--- Quote from: hulkster on October 12, 2007, 09:57:24 am ---not to change the subjet but...

i have a pool, and we have to close it soon.  is this hard to do?  i bought a cover, and plugs for all the holes (heh...plugs for the holes) but the part im worried about is blowing out the line with a vacuum.  i have a shop vac, but ive heard that closing the pool requires taking apart the filter or something.  is that true?  ill probably end up hiring someone to come out and close it for me the first time so i can learn, but wont if you guys can give me a good head start.

--- End quote ---

Is it an above ground or inground?  I can walk you through it.

--- End quote ---

inground. 

DrumAnBass:
Good tips guys. When you add shock at night, do you leave the filter running?

One other question -  my pool was originally built with a sand filter rather than DE. How often should I change out the sand? I generally backwash it every other month. Haven't changed the sand since I have lived in the house - almost 4 yrs.

I agree with bleargh about the pool sweep/vacuum. Best $300 I have ever spent as well.

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