Lift the lid off the brine tank to check the salt level. If you can see water at the bottom, it is time to add salt. You can add salt any time there is enough room to accommodate at least one bag. However, take note that keeping the brine tank completely full of salt can contribute to salt bridging, which prevents the softener from regenerating properly. For a standard size brine drum, we recommend not to exceed 2/3 of its capacity. If you have a smaller size brine drum (short and square vs. round) it is ok to fill it up to the top.
