Shock chlorination is used for rapid disinfection to control pathogens and nuisance bacteria in domestic wells. A typical shock chlorination procedure involves adding sodium hypochlorite in liquid bleach solutions to achieve concentrations of free chlorine of up to 200 mg L<sup>−1</sup> in the standing water of a well. The change in pH and oxidation potential may... https://macorners.shop/product-category/3d-all-over-printed-shirt/