Infection is rare, but has been reported in individuals with predisposing conditions. Here we describe the case of a woman with pyelonephritis and bacteremia in which Lactobacillus delbrueckii was determined to be the causative agent.
you should mix the alkaline cleaning solution with hot water and apply it to the travertine tile floor with a soft scrubbing sponge do not use any type of aggressive scrub pad or scrub brush on you travertine tile floor this is because travertine is a dense stone but the finish can easily be marred by using aggressive scrub pads or brushes soft white scrubbing brushes work great to scrub the travertine and the grout lines without damaging the polished or honed finish of your travertine tile floor
You can clean ceramic tile with just about any soap, but the more powerful ones often give you a better job. The tile and grout need to be free of all dirt, oil, grease, etc. for the paint to have a chance to bond. The best tile and grout cleaner I have ever used is Stain Solver certified organic oxygen bleach. It's Made in the USA with USA ingredients. This is a powder that you mix with hot tap water.