[waterfilters]

Here is a 2 stage system for the sediment and chlorine:
http://www.waterfilters.net/Pentek-BBFS-22-Water-Filtration-System_p_0-586.html
Stage 1: http://www.waterfilters.net/culligan/wholehouse/replacement_filters/DGD-5005-20.htm (5 micron sediment filter)
Stage 2: http://www.waterfilters.net/Pentek/wholehouse/Carbon_Filters/NCP-20BB.htm (carbon filter for chlorine taste and odor reduction)

For the lime scale buildup, you will need a special filter.
http://www.waterfilters.net/Pentek/wholehouse/Specialty_Filters/PCC218.htm
You can use this housing with this filter:
http://www.waterfilters.net/Culligan-HF-160-Wholehouse-Filter-Housing_p_0-2256.html

Thank you,
WaterFilters.NET