Neutralizing bleach

[RPetry 564]

There has been prior discussion here on TGS on neutralizing chlorine bleach, or sodium hypochlorite, or NaClO. This chemical is commonly used in many PW jobs, we even use a mild bleach/soap solution maintaining exterior wood.

Ran into this link from a chemist friend, while purging old emails. http://www.newton.dep.anl.gov/askasci/chem00/chem00046.htm

Not sure why any contractor would need to neutralize, maybe to save working clothes?

[steven 37]

Not sure how expensive it is Maybe someone that does a ton of roofs could use it to spray down their rig at the end of the day?? or use it to neutralize a metal roof after washing it.

[RPetry 564]

Not sure how expensive it is Maybe someone that does a ton of roofs could use it to spray down their rig at the end of the day?? or use it to neutralize a metal roof after washing it.

Steven,

$52.50 for a 50 lb. bag at http://www.chemistrystore.com/ Probably a bit less expensive if available locally.

For wood, we just wash and rinse with a lot of water. Seems to have worked well for the past 12 yrs. or so!

[John.Harper 14]

I use Sodium MetaBisulphite its now required to neutralize in my area to backwash commercial pools .. I recapture my roof cleaning solution and put it in a large tank about 1,000 gallons and neutralize when im getting near the top then dispose of

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should be available wherever you get your bulk chemical sodium hypochlorite