Quote Originally Posted by AZDesertRat View Post
Why do you want a 5 lb bag? Do you have an exceptionally large system or very bad water? A single 20 oz MaxCap cartridge lasts me almost a year with a 100G/30G sump and a 16G nano system. The SilicaBuster cartridge is still the original one almost two years old now and still 0 TDS.
I have two somewhat large systems that use a lot of water. 200 total volume and 300 total volume. The tds on my well water is 400+ coming in and my R/O takes it down to 15, but that's still pretty dirty. My 2 DI's (one on each RO)gets changed out often and I've been neglecting that part of my routine because of the costs. I figured I'd buy a 50lbs of it and split it with some folks bringing my $50 down to around $20 for a 5lb bag.