brown birth marks

Stains on the pool surfaces, pool equipment
or on the swimmers, or off-color swimming pool
water. Discolored but clear pool water.
stoddy
Pool Newbie
Pool Newbie
Posts: 3
Joined: Thu 17 May, 2007 09:44
Location: cyprus

brown birth marks

Postby stoddy » Thu 17 May, 2007 09:54

Hi Im stumped, I have been cleaning a salt water pool for a year now no problems, ph 7.2 it is covered and the Cl is stable at arround 1.5.
in the last 2 weeks i have got brown stains appering on the bottom and brown turning to black on the side in a few places, it is spreading, the solidity of the salt is 5300 so the main readings are ok. i have tried removing the metal and black algie remover but no change. HELP. Chris
A local pool shop said maby water behind the liner so mould is growing through i can rub it with my hand it douse not feel any diffrent and douse not move.


dynamictiger
Swimming Pool Superstar
Swimming Pool Superstar
Posts: 254
Joined: Thu 23 Nov, 2006 17:23
Location: Perth, Western Australia

Postby dynamictiger » Thu 17 May, 2007 17:04

Is this a liner or fiberglass or concrete finish pool?
stoddy
Pool Newbie
Pool Newbie
Posts: 3
Joined: Thu 17 May, 2007 09:44
Location: cyprus

Postby stoddy » Sat 19 May, 2007 10:53

hi its a liner pool , i have tried the vit c tablet but noe diffrent.
dynamictiger
Swimming Pool Superstar
Swimming Pool Superstar
Posts: 254
Joined: Thu 23 Nov, 2006 17:23
Location: Perth, Western Australia

Postby dynamictiger » Sat 19 May, 2007 20:14

Liner pools do get darker patches if something is growing behind the liner. If you can't seem to move it and the area is slowly growing, it does suggest it is behind the liner and not a lot can be done.

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