How do i open the drain out bathroom bottle? If the chemical is on the skin or in the eyes, flush with at least quarts (. liters) for at least minutes. Blockages can also cause serious damage if you don’t fix them quickly the cost of damage from leaking water and blocked pipes can far exceed the cost of professional repairs! Or, continue to use the product selector to find a new boiler. How much money can you earn as a plumber? We’re not always the lowest price—but our customers.