Just wondering if hot water affect the performance of your water filter??
Why I ask? Seems that after I use your product, perhaps after filtering hot water, I realize that there is a built up of white calcium deposits stuck to the rims of the cylinder of my water boiler. Perhaps is the calcium on your filter (large amounts) is transferred to my water boiler???
These filters are for cold water use only and water entering the filters should not exceed 99 degree. There is no calcium in our filters, nor will the filters remove calcium. This is most likely coming from your hot water heater because hot water precipitates calcium faster.