Denver Decorative Concrete & Custom Masonry
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Subject Decorative ConcreteMaster MasonryPatios & DrivewaysCustom FlagstoneWater FeaturesGazebos & PergolasFirepits & BarbequesLandscape DesignWood Decks & Fencing
Posted on February 1, 2010 by SteveP
Category: Questions & Answers Tags: Flagstone
Try neat Bleach, it may work!
Vinegar or baking powder is on this link… http://www.ehow.co.uk/way_5906737_homemade-flagstone-cleaner.html click on it and have a look see if any use..
I’m guessing that it might be old paint or a sealant. Try some liquid paint remover eg Nitromorse. (any harware shop). Its very caustic but easily neutralised with water and it will not hurt stone or ceramics.
I have been told to use coke and Jeyes Drain cleaner. Mix together, spread over, leave and then scrub and then rinse off.
Apparently Jeyes has a general disinfectant as well as a drain cleaner and it’s the drain cleaner you need.
I haven’t tried it yet on account of weather etc but will give it a go as I have nothing to lose.
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