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Water Hardness Question

by noname2020x
Tags: hardness, water
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noname2020x
#1
Mar25-12, 12:09 PM
P: 12
1. The problem statement, all variables and given/known data

I know what causes water hardness, how it can be resolved (or dissolved - hehe), but I'm not sure why certain parts of pipes would be harder than others. Specifically, why the water on the 1st and 2nd floor of a building would be harder than that on the 3rd and 4th floor. I have to write a ten page paper on these findings, and I'm stumped. Suggestions? Possible causes?

2. Relevant equations

2 HCO3– → CO32– + CO2

3. The attempt at a solution

The only thing I can think of is that is may be warmer in the basement making the Ca2+ ions react with bicarbonate forming buildup.The problem is, the water from the same pipes (I assume) travels to the top floor.

HELP!!!
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Pete54
#2
Mar26-12, 07:15 PM
P: 2
the water pressure would be higher at the bottom of the building
noname2020x
#3
Mar27-12, 01:26 AM
P: 12
Thanks! I will add that to my paper for sure. Any more suggestions?

noname2020x
#4
Mar28-12, 12:28 PM
P: 12
Water Hardness Question

Any more ideas?
NascentOxygen
#5
Mar29-12, 05:46 AM
HW Helper
Thanks
P: 5,142
why the water on the 1st and 2nd floor of a building would be harder than that on the 3rd and 4th floor.
Is this a conclusion you arrived at based on the observed greater buildup of scale on the lower pipes? Is it a "safe" conclusion?

Perhaps more water is required to flow through pipes the closer they are to the level at which water enters the building?


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