the great hambino said:
im building my first WC system and i remember reading online you need to leave your computer on all the time, is this true? i like to turn my computer off when i'm not home.
You don't have to leave it on. If you do turn it off though certain anti-microbial tools may not work properly due to a lack of water circulation. In this case you may want to avoid using a kill-coil and opt for a biocide instead. If you want a watercooling solution that's maintenance free you can always use automotive antifreeze (50/50 or 75/25 mixtures of distilled water and ethlyene-glycol). Do not use Propylene-glycol based antifreeze