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How to clean a watercooling sys.

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To clean any and all crap out of your watercooling system just make a mix of 50% water and 50% draino then let it cycle for a couple minutes then flush it out really well with water. I had caulk get into my system and it had coated EVERYTHING and after 5 minutes of cycling draino it was perfectly clean and new looking. Only problem was i spilled it all over myself.