Browse Forums DIY, Home Maintenance & Repair Re: White thingy on brick wall 3Sep 22, 2015 6:55 pm yep efflouresence. Clean with brush and then use this. http://www.bunnings.com.au/stain-remove ... 2_p0960128 Re: White thingy on brick wall 4Sep 23, 2015 11:45 pm It's salts coming out of your bricks Retic would be hitting it , brick gets wet and as water leaves the brick , salt comes with it U need to clean it with hfl ( hydro floric acid ) not hydrochloric . Simply mix 10 to 1 and scrub . Google where to buy it I am saying that double brick has similar thermal performance due to thermal mass effect. It will be still very interesting to see the state of your framing after 10-15… 10 29741 can’t tell from the photo, a tie down rod will be 12mm, is it a steel beam? he should be able to work it out 1 4444 Thank you alexp79 and gommeqld for your advice, that's very helpful, thanks 3 7897 |