According to a manufacturer, potential hazards include violent reaction with water and the production of upon contact with most ; chronic (delayed) and acute (immediate) health hazards if inhaled, ingested, or contacted, including severe eye, flesh and skin burns or even , inflammation of respiratory membranes, and corrosive burns to all . It may even be fatal if swallowed. Due to the vigorous reaction between the acid and water, such acidic drain openers should be added slowly into the pipe to be cleaned.
Product design experts say a well-designed bottle shouldn’t leak, even when dropped – especially if it contains something dangerous. Consumers, however, have complained for years about problems with Rooto’s bottles of sulfuric acid drain opener.
Another aspect of the present invention is to provide a method of opening and cleaning clogged drains, through the contact of a clogged drain with the aqueous sulfuric acid drain opener composition of the present invention.
Then, in June 2014, Deborah Mooneyhan says she burned her hands when she went to grab a bottle of Rooto-manufactured Liquid Lightning sulfuric acid drain opener from the shelf of a Walmart in Cleveland, Miss.