Many consumers prefer natural methods of cleaning these days, rather than having dangerous chemical cleaners in their homes. Stubborn ring around the tub that's hard to get clean? Try using baking soda instead of your regular scouring powder. Baking soda is nontoxic, environmentally friendly and won't hurt your kids or your pets if they accidentally get into it. A large box of baking soda is inexpensive and goes a long way.
How to Clean a Tub With Baking Soda
Wet a sponge and squeeze it out. Sprinkle a liberal amount of baking soda on it and begin cleaning your tub, starting at the top rim. You'll find that stains that have been on your tub for a long time will begin to fade each time you clean your tub.
Work your way down the tub, using a circular motion. Rinse out your sponge and wet it again; add more baking soda as needed. Pay special attention around the edges of overflow drains and jets, and don't forget the drip stains underneath.
Scrub the bottom of the tub carefully, as some tubs have a non-slip surface where dirt seems to be particularly troublesome. If necessary, wet the bottom of the tub, sprinkle baking soda all over the surface and then leave for an hour in order for it to penetrate.
Re-scrub the entire bath after the elapsed time, and then rinse the tub with cold running water to remove all traces of residue. Allow the tub to air dry or wipe dry with a clean white towel.