Hi, we are contemplating having an outside shower fitted to our van. We have a Scottie dog who could always do with a hose down. Also thinking it might be good for muddy boots etc. Should we have just a cold feed one or hot and cold? If you have one do you use it much? Is it worth it? What do you use yours for? We've an autosleeper Northants, so far we've spent most nights on cl sites or car parks!