Will Spraying Drione Ruin My Copper Pipes?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by LAnewplumber, Mar 18, 2013.

  1. LAnewplumber

    LAnewplumber New Member

    Messages:
    4
    Location:
    Los Angeles
    A licensed pest control company I'd like to hire told me they can spray the sub-floor (aka crawl space) to help get rid of some roaches. I asked them what chemical(s) they would use and they said they use Drione.

    I had the building re-piped about ten years ago with copper piping and want to make sure that I won't be damaging my property. The website claims the following as the active ingredients:

    Pyrethrins - 1.0%
    Piperonyl Butoxide - 10.0%
    Amorphous Silica Gel - 40.0%

    If anyone has any insight, I'll very thankful. Forum members pointed out to me in a previous question to not even think about spraying bleach down there, as bleach ruins copper.

    Thanks in advance!

    LAnewplumber
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,247
    Location:
    Cave Creek, Arizona
    I doubt that they will be spraying the chemical on the bottom of the floor where the pipes are, but you would have to contact the manufacturer of the chemical as to its properties. I do not think it would have any effect on the copper tubing, except maybe to discolor it.
  3. LAnewplumber

    LAnewplumber New Member

    Messages:
    4
    Location:
    Los Angeles
    As I understand it, they're spray the entire crawl space (i.e. the area beneath the floor on the first floor; the area where the cable guys crawls under to run wires, etc).

    Good idea to send an email to the manufacturer.

    Thanks,

    LAnewplumber
  4. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,247
    Location:
    Cave Creek, Arizona
    quote; they're spray the entire crawl space (i.e. the area beneath the floor on the first floor

    I would think they would spray the walls and FLOOR of the crawl space, not the bottom of the first floor. They want to keep them OUT of the crawl space, not TRAP them there.
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