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					Originally Posted by The Grizz  Slickfork is correct it all depends on the well, our well before ours system is loaded with tannin. Thankfully we have a very large & expensive filtration system that really cleans the water up, out of the tap it's 8 ppm but I think I might get a small RO just for the tank. With very low ppm's out of the tap already my small RO system filters should last a little longer then normal city water. | 
	
 Grizz, which filter system are you using?
Kinetico?