At the moment I just pour water in from a 5 litre plastic bottle, but I'm going to upgrade it soon.
This was the first 'system' we had to supply running water into the house last year. That little metal tank holds about 30 litres and there's a flexible pipe which feeds through the wall into the kitchen. It was filled using either a bucket or a watering can.
We've upgraded the system now so that little tank is free again and I might rig it up for the out-door washstand.
