Pssssst
Don’t tell anybody.
But we have been recycling our greywater from washer and kitchen sink forever.
Plumber hubby put in a shunt to redirect it out to a barrel with a hose spigot and I use it to water yard and garden stuff.
Your secret is safe. I do the same.
I’m on a septic tank and the grey water is recycled. Of course if I ever sell my house, I’ll have to reroute to the septic tank. It isn’t up to “code” the way it is. Heaven forbid you reuse that water for something!
As long as you don’t use commercial laundry cleaners and softeners and stuff.