Clean your Morton water softener by flushing the brine tank, checking the resin bed, and running a regeneration cycle
A Morton water softener needs cleaning roughly once or twice a year, depending on your water hardness and how often the system regenerates. The main task is emptying and rinsing the brine tank—the tank that holds salt—because salt residue and sediment build up over time and can clog the system. You'll also want to inspect the resin bed (the material inside the main tank that actually softens water) and run a manual regeneration cycle to flush everything through. Most of this work takes an afternoon and requires no special tools beyond a wet/dry vacuum and a hose.
The cleaning process is straightforward and doesn't require a technician unless something is broken. You'll turn off the system, remove the salt, scrub the tank, check for damage, and run a cycle to confirm everything works. After that, refill with fresh salt and you're done until next year.
Key Takeaways
- The brine tank should be emptied, scrubbed, and rinsed at least once yearly to prevent salt bridges and sediment buildup.
- A salt bridge—a hard crust that forms inside the brine tank—stops the system from drawing brine and must be broken up with a broom handle or plastic rod.
- The resin bed inside the main tank rarely needs cleaning, but you should inspect it for discoloration or foul odor, which signal a problem.
- Running a manual regeneration cycle after cleaning flushes the system and confirms everything is working before you refill the salt.
Emptying and Cleaning the Brine Tank
Start by turning off the water softener at the control panel or by switching the bypass valve to bypass mode. This stops the system from trying to regenerate while you're working. Open the brine tank lid and remove any remaining salt with a wet/dry vacuum or by hand if the tank is nearly empty. You don't need to drain the tank completely—just remove the salt and any loose debris.
Once the salt is out, fill the tank halfway with clean water and scrub the interior walls with a long-handled brush or a stiff broom. Pay special attention to the corners and the bottom, where salt residue and sediment settle. Drain this water out through the drain valve at the base of the tank, or use the wet/dry vacuum to remove it. Repeat the rinse two or three times until the water runs clear and you see no more salt crystals or sediment on the bottom.
If you notice a hard, crusty layer stuck to the bottom or sides—called a salt bridge—use a plastic rod or wooden broom handle to gently break it apart. Do not use a metal tool, which can puncture the tank. Once the bridge is broken, continue rinsing until all the pieces are gone. Salt bridges form when humidity inside the tank causes salt to clump, and they prevent the system from drawing brine, so removing them is important.
Checking the Resin Bed for Damage
The resin bed sits inside the main tank (not the brine tank) and is usually visible if you open the top access port. You don't need to clean it during routine maintenance, but you should look at it to make sure it's in good condition. Healthy resin beads are tan or amber colored and uniform in size. If the beads look dark brown or black, smell like rotten eggs, or appear broken or mushy, the resin bed has failed and needs replacement.
Discoloration or odor usually means bacteria or iron has built up in the resin, which happens when the system hasn't regenerated properly or when your water has high iron content. If you see this, you'll need to call a professional to replace the resin bed—it's not a DIY task. For routine cleaning, straightforward close the access port and move on to the regeneration cycle.
Running a Manual Regeneration Cycle
After you've cleaned the brine tank and inspected the resin, run a manual regeneration cycle to flush the system. On most Morton control panels, you'll find a button labeled "Regenerate Now" or "Manual Regen." Press and hold it for a few seconds until the display shows the cycle has started. The system will draw brine from the tank, backwash the resin bed, and rinse everything through—this takes about 2 to 3 hours depending on your model.
During regeneration, water may run cloudy or discolored from the tap—this is normal and harmless. Do not use hot water during this time, as it can interfere with the cycle. Once the cycle finishes, the display will return to normal and the system will be ready to soften water again. This is the right time to refill the brine tank with fresh salt.
Refilling the Brine Tank with Salt
After regeneration is complete, add salt back to the brine tank. Morton makes several salt products—pellets, crystals, and blocks—and any of them work in a Morton softener. Fill the tank until the salt level reaches about three-quarters full, leaving some space at the top. Do not overfill, as the salt needs room to dissolve and the brine to circulate.
Use only water-softening salt, not table salt or rock salt. Table salt contains anti-caking agents that can clog the system, and rock salt contains too many insoluble minerals. Check your owner's manual for the recommended salt type if you're unsure. Most homeowners refill salt every 4 to 6 weeks, depending on water hardness and household size.
Preventing Salt Bridges and Sediment Buildup
Salt bridges form most often in humid climates or when the brine tank sits in a damp basement. To prevent them, keep the tank in a dry location if possible, and avoid letting the salt level drop too low—an empty tank is more likely to develop bridges. Some people add a small amount of water to the salt when refilling, which helps it dissolve evenly and reduces bridging.
Sediment buildup happens when your water contains sand, silt, or other particles. If you notice sediment in the brine tank every time you clean it, your water may need pre-filtering before it enters the softener. A sediment filter installed upstream of the softener will catch these particles and protect the resin bed. This is especially important if your water comes from a well.
When to Call a Professional
Most cleaning and maintenance you can do yourself, but some problems require a technician. If the system won't regenerate even after you've cleaned the brine tank and run a manual cycle, the control valve may be stuck or faulty. If the resin bed shows signs of damage or the water still tastes salty after regeneration, the resin needs replacement. If you notice water leaking from the tank or the bypass valve, the seals may have failed.
A professional can also help if you're unsure whether your water quality has changed or if you want to adjust the system's settings for harder or softer water. Most water softener dealers offer annual maintenance visits, which include cleaning, inspection, and any needed repairs.
Frequently Asked Questions
How often should I clean my Morton water softener?
Clean the brine tank at least once a year, more often if you live in a humid climate or have very hard water. Check the salt level every month and refill as needed. Run a manual regeneration cycle after cleaning to flush the system.
What does a salt bridge look like?
A salt bridge is a hard, crusty layer—usually white or tan—that forms on the bottom or sides of the brine tank. It feels solid and won't break apart by hand. You can break it up with a plastic rod or wooden broom handle, then rinse the pieces away.
Can I use regular table salt in my water softener?
No. Table salt contains anti-caking agents that can clog the system. Use only water-softening salt, which comes as pellets, crystals, or blocks. Morton and other brands make salt specifically for water softeners.
What should I do if the water still tastes salty after cleaning?
Run another manual regeneration cycle to make sure all the brine was flushed from the system. If the taste persists, the resin bed may be failing or the control valve may not be closing properly. Contact a professional to inspect the system.
Is it normal for water to be cloudy during regeneration?
Yes. During regeneration, air and sediment move through the system and can make water cloudy or discolored at the tap. This clears up once the cycle finishes. Avoid using hot water during regeneration, as it can slow the cycle.