Streaky stone work

This is the result after cleaning with hypo and a soft jet wash any ideas how too get streaks out thanks


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Ideally you need to work from the bottom up as that is a result of chems running on application and bleaching the substrate.. by working from bottom upwards the run off will be running over already applied chems..
You might have to go with a tad stronger mix half% (bottom to top).

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Thanks


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have you tryed meta clear   , and as above  allways hypo from the botton and work up that will stop the streaks