Well it will be 12 weeks this weekend w/ my initial fill water. Although I haven't had any cloudy water yet and have kept it in perfect ph/alk/CH/ balance w/ only adding +/- chems 3 times, I feel that a refill is neccessary to lower my TDS's and CYA.
Anyways, as soon as the weather permits I will be dumping and using a Nature 2 cartridge w/ my new fill to see if I will notice any sort of change to my water. I managed to get one for $10 from my friend who sells tubs, so I figured it's worth a try. Is there any tips/pointers I should do that aren't laid out in the instructions that I should be aware of? Has anyone else tried one after a fill of not having one and noticed a difference or care to share their thoughts/experience w/ one.