[HenryC]

Quote: Originally Posted by mitten Henry- Is that a water softener or some other type of pretreatment for supply water? What is your strategy? What do you need to filter out and what are you able to achieve for results? Mickey the windowman

It is a carbon filter. It is mainly to remove chlorine but it does take care of a few other things as well. The carbon filter is used for small water changes and the constant slow trickle of water added. For a large water change, the carbon filter will be bypassed since it only handles 12gpm. Since I do not have chloramines, all I need to do is add sodium thiosulfate during those large water changes. There will also be a 450gpd RO unit providing a constant trickle of water. The ratio of RO water and regular carbon filtered water trickle will be adjusted to create the alkalinity and hardness I want.