Re: Yellow Water
When metal ions in the water are oxidized (by shocking) they will form colored compounds in the water. This is what colors the water. When they precipitatate out of the water they form stains. Pools that are stained often don't test positive for metals since the metals are no longer in the water.
A full set of tests results, including metals, will let us know what is happening in your pool, including the possiblity of staining if metals are present.
Green water ususally indicates copper
Yellow to brown water ususally indicates iron
Purple water usually indicates manganese.
Last edited by waterbear; 07-25-2006 at 11:09 AM.
Retired pool store and commercial pool maintenance guy.
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