It's possible that your water conditions have changed.
It's possible that your softener is not sized and/or set up correctly.
It's possible that your softener is not operating properly.

A correctly sized and set up softener should produce 0 hardness water.

1 to 2 gpg hardness is considered soft by many. 1 to 2 gpg leakthrough is minimal but you paid for soft water... you should be getting it.

Hardness bleed in a properly operating softener should be less than 1 gpg.

Just for housekeeping purposes: grandmum, you've posted many questions about your softener. Each one contains another little piece of information and none contain all of the information. If you want answers that make sense, keep all of your questions on the same topic in the same thread.

Thanks... my test is actually more in depth then the local water experts.... he sells softeners by showing folks jars of soap without suds.