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I use a 50 gallon mixture roughly 32 gallons of water and 18 gallons of sodium hypochlorite 12.5% to clean the exterior of houses. I'm looking to neutralize the effects of the bleach so that no plants or grass is damaged if it comes down the gutters. Thanks.

Can I effectively neutralize sodium hypochlorite 12.5% with hydrogen peroxide? If so, what percentage should I use? If not, what else could I use? Thank you in advance!