Yes agreed. It's a great way to maintain levels of Ca and Alk once it's where you want. I used Randy Holme's Farley's recipes for DIY two part, but not for daily dosing, for adjustment if necessary. I started a thread about my current tanks issues and am using washing soda to bump only the alk. I'm hoping my kalk mixed/top-off will maintain whatever levels I can push the tank to with it. I had been neglecting kalkwasser addition for the tank and relying on too-far-in-between water changes, but I got off my butt and setup my kalk mixer again.