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christopher lagrasta

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About christopher lagrasta

  1. removing rust stains on shingles using f9

    Wood bleach. Please tell me more
  2. removing rust stains on shingles using f9

    thanks alot im thinking thats why i have some discoloration i leave it on for 4 minutes every application
  3. removing rust stains on shingles using f9

    sounds great how lond should i leave the f9 on before i start to rince
  4. IVE BEEN RUNNING INTO ALOT OF RUST STAINS ON ROOFS. IVE BEEN USING F9 WITH AMAZING RESULTS ....HOWEVER EVERY TIME I USE F9 I CAN SEE A NOTICABLE DIFFERENCE IN THE ROOFS.... LET ME EXPLAIN HOW I USE THE F9 1- I PREWET THE ROOF THEN USE A 50/50 MIX(SOMETIMES STRINGER) THEN I WAIT A FEW MINUTES THEN SOAK THE ROOF.. I DIDNT THEN WASHTHE ENTIRE ROOF WITH ROOF MIX ONLY BECAUSE THE CUSTOMER ONLY WANTED THE RUST REMOVED.............DOES ANYONE KNOW WHAT I AM DOING WRONG OR DO THEY HAVE BETTER SOLUTIONS.. THANK U
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