Chances are if it’s not reacting to bleach then it’s not a biological stain it must be something else. It could be a reaction to either sealers resins etc.Sent from my iPhoneFred customer said she has tryed the bleach test with no results. Any other thoughts?On Thu, Sep 27, 2018 at 11:11 AM Richard Middleton <richard@prosteem.com> wrote:That's what I said at first,however customer says they only appeared recently. I will have the customer test with bleach as that was my first thoughts as well. Thank y'all for input.On Thu, Sep 27, 2018 at 10:56 AM Fred Hueston <fhueston@gmail.com> wrote:In that case try placing a few drops of bleach on the black spots if they disappear and then it is biological--On Thu, Sep 27, 2018 at 8:55 AM Ace Siler <bellastonecare@gmail.com> wrote:The black spots are naturalSent from my iPhoneFred it is the black spots the customer is concerned about correcting. Sorry for confusion.On Thu, Sep 27, 2018 at 10:48 AM Fred (via sccpartners list) <sccpartners@stoneandtilepros.simplelists.com> wrote:That doesn’t look like it’s biological to me. Try dropping some acid on the white spots and see if it fixes it looks like it might be some kind of salt depositSent from my iPhoneGood morning everyone! :)I have a customer that has what looks like a microbial growth on her Flagstone counter tops. It was installed 4 weeks ago and the black spots began to appear about a week ago.This counter top is located on the customers back porch.What product and process would be best to remove this and keep it from returning?Thanks in advance.<image.png>
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sccpartners@stoneandtilepros.simplelists.comFrederick M. Hueston
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