Put Salt in Your Washing Machine. Here’s Why. This is something appliance repair people will never tell you.

Precautions and Considerations
While there are many benefits to adding salt to your washing machine, it’s important to keep a few considerations in mind:
Frequency:
Don’t overdo it. It’s not necessary to use salt in every wash. A maintenance wash once a month or adding salt to particularly heavy loads should be sufficient.
Compatibility:
Check your washing machine manual or consult the manufacturer to ensure that using salt won’t void your warranty or damage specific parts.

Clothing Type:
Be careful when washing delicate fabrics or garments with embellishments, as the abrasive nature of the salt could cause damage.