Cloudy water after heating from UDS-10EX1 ?

[dorfu]

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?

[Andy CWS]

What is the condition of the source water? How old is the filter media? Is there any other treatment involved?

[dorfu]

What is the condition of the source water?

The source water is municipal, and I don't have the recent report in front of me but it's all within EPA and State specs. It is a little hard, and we've had rain recently so probably more hard than normal. As I said the experiement I did with tap water from the same source did not show this effect at all.


How old is the filter media?

The filter media is about 2 weeks old.


Is there any other treatment involved?

Nope, just the cartridge mentioned.

[dorfu]

I also noticed that these filters are "Made in China" - given all the product safety issues with Chinese goods and the fact that the housings are totally opaque I am worried that these could be counterfiet as again I've been using KDF filter media for many years and have never seen this happen.

[dorfu]

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What is Filters Fast return policy?