Hmm...good suggestions. I have taken out the prefilter and tried already...no improvement. I also took out the first carbon block...but the prefilter was back in while I tried that. No improvement either. Never thought about plastic in a line as I did try to check to see if there was a build up anywhere, but nothing.
My water to start with is about 125-135 TDS
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Mark...
290g Peninsula Display, 425g total volume. Setup Jan 2013.
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