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    Cleaner ratio for tire marks on concrete

    My standard cleaner for concrete is 10.5 and a butyl degreaser downstreamed at about 8:1 and works well for most of my residential jobs- mildew,dirt, moderate tire marks etc. coldwater ( I know, hot is better.) I have one coming up- Concrete is about a year old and there is no mildew but heavy...
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    Another downstreamer question

    Has anybody tried XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX's Double Gulp Injectors, which allows two draw tubes to be run off of the injector (It has two barbs) and put into one solution and supposedly draw more chemical? Like many others I'm trying to find a solution to the low draw rate of...
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