I need help sizing a softener.
I have 16gpg hardness, 3ppm iron, two people, one bathroom house. I am not sure how much water we each use but I would think that 60-65 is plenty. I plan on getting a fleck 5600sxt with sst 60 resin.
I have been told by one online retailer that a 1.25cf softener (40,000) is what I should purchase. They recommended regen every 7 or 8 days.
One local retailer tried to rent me a 60,000 grain unit, and said it should regen every 3 or 4 days because of the amount of iron.
A national brand retailer suggested a 32,000 unit with a regen every 3 or 4 days because of the amount of iron.
I want to have the highest salt efficiency possible. I am not overly concerned about water usage, but obviously using less is better. I also want to prolong the life of my resin as best I can because I know that I am really going to be running too high of iron through it.
1) do i need to regen often (3-4 days) in order to keep my resin in good condition with my high iron?
2) Would the interval of regen be considered in the sizing of my softener? If so, which size softener should I get for a shorter interval and which size should I get for a longer interval?
3) Approximately how much salt would I use for either of the appropriate options?
4) should I consider a Fleck 7000sxt because of the soft water brine refill feature which should (?) keep my softener in better shape with my high iron?