What does that have to do with water conservation? It's not water conservation it's water usage that's going down. If you fill your car tank and don't drive, y

What does that have to do with water conservation? It's not water conservation it's water usage that's going down. If you fill your car tank and don't drive, you're not conserving it because it's still going to drain just as fast when you do drive. The car has already got the water in there. You won't take it back out.