Your water softener has several settings that control how and when it regenerates. Understanding these settings can help you optimize your system for efficiency and performance. This guide explains the key settings and what they mean for your San Antonio home.
Hardness Setting
The hardness setting tells your softener how hard your water is, which determines how much water can be treated before regeneration is needed. For San Antonio homes on city water, this should typically be set between 21-25 GPG. The higher end accounts for any iron in the water (add 5 GPG for every 1 mg/L of iron). If you are on well water, set this based on your specific water test results. An incorrect hardness setting is one of the most common causes of poor softener performance.
Regeneration Type: Timer vs. Metered
Water softeners regenerate in one of two ways. Timer-based systems regenerate on a fixed schedule regardless of water usage — for example, every 3 days. Metered systems track actual water usage and regenerate when a certain number of gallons have been treated. Metered systems are more efficient because they only regenerate when needed. If your system has a meter, it will calculate regeneration frequency automatically based on your hardness setting and water usage.
Regeneration Time
This setting determines what time of day the regeneration cycle begins. The cycle takes approximately 90 minutes and uses about 50-80 gallons of water. You want this set to a time when no one is using water — typically 2:00 AM. If someone uses water during regeneration, they will get untreated hard water. Set the clock on your softener accurately, especially after power outages.
Salt Dose / Brine Refill Time
The salt dose setting controls how much brine is used during each regeneration cycle. A higher salt dose means more thorough regeneration but more salt usage. Most systems are factory-set to an optimal level, but it may need adjustment based on your specific water conditions. The brine refill time determines how long the system fills the brine tank with water after regeneration — this water will dissolve the salt for the next cycle. If set too short, there will not be enough brine for effective regeneration.
Reserve Capacity
The reserve capacity setting determines how much treated water capacity the system keeps in reserve before triggering regeneration. This ensures you do not run out of soft water if usage is higher than normal. Most systems default to a reserve of about 20-25% of total capacity. If your household has variable water usage — for example, guests visiting frequently — you may want to increase this setting to prevent running out of soft water.