Homemade Drain Cleaner and Declogger
This is very effect! And a whole lot cheaper...and safer than those store bought drain cleaners....:-)
1 tablespoon coarse salt ,sea salt or kosher
Mix the salt & baking soda and pour into drain.
Wait 15 minutes then " slowly " pour 2 cups almost boiling water down the drain.
If it seems to be draining well, then repeat this every two weeks or once a month, or every other month as necessary.
If it still seems sluggish then repeat.