The Ontario Building Code | Neutralizing and Dilution Tanks
7.4.4.4. 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.
7.4.5. Traps
In Plain Language
Where a fixture or equipment discharges corrosive or acidic waste, a neutralizing or dilution tank is required to treat that waste before it enters the regular drainage system, protecting the piping from chemical damage.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.