This is very odd, and I wonder if it has to do with the KDF material? We installed a Pentek UDS-10EX1 filter purchased from Filters Fast and have been using it for a couple weeks. My wife filled a clean stainless pot to put on our wood stove to help with dry air. She happened to use water from the filter and I noticed the water was very cloudy after about 2/3 of it had evaporated.
This was a little alarming so I did an experiement where I put filtered water in one pot and tap water in another and evaporated them on our gas range until they reached about 1/2 their original volume. The water from the UDS-10EX1 cartridge became very cloudy almost immediately. I've never noticed this before from other KDF filters I've used.
What could cause this and should I discontinue the use of this filter?