Averages are for Corvallis Municipal, which is 5 miles from Corvallis.
Warnings. Do not use pumice stones to clean marble, laminate, plastic or fiberglass toilets; doing so will result in permanent scratches. A dry pumice stone will also scratch porcelain, so be sure to keep the stone and the toilet surface wet at all times.lean With a Pumice Stone. Before cleaning a porcelain toilet with a pumice stone, you must thoroughly wet both the stone and the surface to be cleaned and keep the stone and the surface wet as you work.
Saturate rubbing felt or plain soft cloth with light oil. Dip it in PUMICE STONE and shake off the excess. Apply, using uniform pressure over a small area, using approximately 6-8 strokes, always rubbing with the grain of the wood. Wipe off the excess PUMICE STONE with a clean oil saturated cloth.Remove oil with a plain, dry cloth.ip it in PUMICE STONE and shake off the excess. Apply, using uniform pressure over a small area, using approximately 6-8 strokes, always rubbing with the grain of the wood. Wipe off the excess PUMICE STONE with a clean oil saturated cloth. Remove oil with a plain, dry cloth.