2007-12-06 08:59:03 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Do you live near a lime quarry? That stuff gets into the water.
2007-12-06 09:10:01 · answer #1 · answered by Alli 3 · 0⤊ 0⤋
I assume you mean at the waterline, what has happened is you live in an area with "hard water" that is there is a lot of calcium and/or lime dissolved in the water, when the water evaporates it leaves the calcium behind as a residue eventually building up into an ugly deposit. there is a couple of things you can do , first and most expensive is a water softener which is installed between where your waterlines come into your house and the fixtures and it filters out the calcium/lime before it gets to your sink , spigot , or washing machine. secondly there is a product called"Lime away " that is commercially available in most hardware stores that will remove the deposits very well.
2007-12-06 17:13:45 · answer #2 · answered by Matt D 4 · 0⤊ 0⤋
The Calcium was initially dissolved in the water as soluble Ca(OH)2. This reacted with CO2 in the air to make CaCO3 + H2O
2007-12-06 17:03:20 · answer #3 · answered by GTB 7 · 0⤊ 0⤋