So did you have 2 sediment filters and 3 carbons? Or... ?
Also, how long would the filters last before you needed to switch out your filters?
3 sediment, 5 carbon, 2 RO, 3 DI
I wasn't running a continuous drip but filling a 55 gal barrel ahead of time for water changes. I had to change maybe twice a year.
It eventually became too much trouble and I switched to using dechlorinator (but still testing chlorine for each batch of water).