3 ms·How much water do you really need to cool a computer? Isn’t that negligeable?by jeromegv 4y agoHow much water do you really need to cool a computer? Isn’t that negligeable?kadoban 4y ago_maybe_ a liter a year, for consumer water loops. Yeah, there's about a thousand things I'd worry about before the water usage of cooling computers.hoseja 4y agoHey, plastic straws are also negligible and pearl-clutchers made them an issue too.