I've been blowing through my filters Spectrapure filters a little more than I think is normal. Maybe I'm wrong b/c my tap TDS is usually well below 200 which seems pretty good. Having said that, I've had 3 pin hole leaks in my copper pipes. The house isnt THAT old (1986). Does anyone recommend a kit for testing the tap water? I'm considering getting a whole house filter to remove chloramines and hardness but I want to make sure I get the right system. Any recommendations on that too?