Stubborn Brown Spots on Pool

Stains on the pool surfaces, pool equipment
or on the swimmers, or off-color swimming pool
water. Discolored but clear pool water.
tkntx
Pool Newbie
Pool Newbie
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Joined: Thu 07 Jun, 2007 18:52

Stubborn Brown Spots on Pool

Postby tkntx » Thu 07 Jun, 2007 19:00

I have spots on the bottom of my pool that almost resemble sand or dirt that has settled. These spots cannot be vaccumed or brushed away. Any ideas?


me_too

Re: Stubborn Brown Spots on Pool

Postby me_too » Fri 08 Jun, 2007 09:00

tkntx wrote:I have spots on the bottom of my pool that almost resemble sand or dirt that has settled. These spots cannot be vaccumed or brushed away. Any ideas?

Tannin stains from leaves maybe? If so, 20 ppm chlorine overnight should eliminate them.
tory921
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Pool Newbie
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Joined: Fri 15 Jun, 2007 05:39

Brown stains in pool

Postby tory921 » Mon 02 Jul, 2007 16:25

I have the same problem with my pool. I have a 24 ft round pool/vinyl liner.
Exactly how much chlorine is 20 ppms?

Thanks
chem geek
Pool Industry Leader
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Location: San Rafael, California

Postby chem geek » Mon 02 Jul, 2007 17:24

If it's an organic stain, then putting a Trichlor puck on it for 5 minutes or so will fade it (if it's a metal stain, then it won't fade). You can use an pumice stone to remove it. The previous advice (Trichlor and pumice stone) is ONLY for plaster/gunite and NOT for vinyl.
Backglass
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Re: Brown stains in pool

Postby Backglass » Mon 02 Jul, 2007 21:39

tory921 wrote:Exactly how much chlorine is 20 ppms?


It is exactly 20 parts chlorine for every milllion parts water. :P

Seriously, it all depends on how much water is in your pool. Use your test kit to get to 20ppm.

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