The Ontario Building Code | Neutralizing and Dilution Tanks
22.214.171.124. Neutralizing and Dilution Tanks
(1) Where a fixture or equipment discharges corrosive or acid waste, it shall discharge into a neutralizing or diluting tank that is connected to the sanitary drainage systemthrough,
(a) a trap, or
(b) indirect connection.
(2) Each neutralizing or diluting tank shall have a method for neutralizing the liquid.