A pool has to be safe at all times. Of course safety is not without hard work. A pool has to be routinely cleaned and sanitized for it to be completely protected. Now, a pool requires much more that a soap and scrub wash. With the intensity of the bacteria and algae present on it's every corner, there is a need to exercise a stronger way of cleaning. This is called acid washing.Most pool owners opt to pay professionals to acid wash their pool.