Its getting hot in here, So Remeber to top up your w/c system

I was just sitting here and i looked at my w/c system then i saw this.

I was like ****, where's all that water gone to (usually the water level is like 2 inch up the pipe). Quicky i shut everything off, thinking i had a leak, then after 5 mins of checking all connectors and finding nothing i was most perpelexed, then i realised. Its summer, and its dead hot, Duh obveously its evaporated.

Moral of the story: Uhh, nothing really

Do you keep the top capped off?

Nah, Thats probly the problem