Do you have chloramines in Calgary?

ya they add a bunch of stuff to the water!!!! we pretty much drink waste water turned good

There are chloramines here too, and I can remove them entirely just by using a single 0.1 micron carbon block. The bigger micron carbon blocks are not as efficient. Be aware though, that you will have water contaminated with ammonia once it goes through the carbon filter.

Is your tank a reef or FOWLR? Are you most concerned about the waste water? I'm just wondering why you don't opt for the RO system when you say the tapwater is so terrible. There are lots of options for use of the waste water. It's fairly simple to hook up a system to use the waste water in your washing machine.

ya i sold my RO unit as i did make my mind up tho, but you say there is amonine that comes out of the filter?

Coming from a plumber hooking up ro waste to washing machine as far as I know is not easy most people use hot water to start with so that ends that idea right away but even with cold wash you would need a large expansion tank and a bunch of new plumbing installed even with that I doubt it would have the pressure and volume needed to operate properly . Other options are using in garden I know people that drink it but our water out of tap is 8-9 ppm so pretty clean.

There are several RO systems that are a zero waste system. I use one at home myself, the waste water is fed directly back into your potable system.
Google it. A couple fittings and you are in business.

ya my plan was to keep it under the 80 mark all in and so far am hovering around 120 so getting down there that why looking for ppls broken units is perfect 3 housing for 20 to 30 bucks and then it save them from throwing it out too, i have time to wait till it come around or till i fiind a sale