we own a ford transit winnebago 2005 6 berth motorhome, having a few problems with the water tank,we fill fresh water tank to capacity, its empty after two 5 minute showers what could be happening?it has a 108 litre tank and we know it has a 2nd tank also. what is black water ??
its not leaking (the fresh water tank.
depending on the shower head you can use 10 litres per minute or more so check it by using a measuring jug grey water is waste water from washing up, showering so I would assume black water is from the toilet.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix plumbing.