Complex sentence: To keep the pH in the neutral range, the required amount of hydrochloric acid or sulfuric acid must be added to the disinfected water.It must be noted that in this kind of cells, the main product is sodium hypochlorite.
Split into simpler sentences: To keep the pH in the neutral range, the required amount of hydrochloric acid or sulfuric acid must be added to the disinfected water. It should be noted that in this kind of cells, the main product is sodium hypochlorite.