There are at least 3 reasons not drive off with your waste valve open.
1) You can put contaminants on the road which could affect other road users safety (motorcyclists)
2) Health issues, dumping your waste across a campsite as per the OP. No matter how clean your tank it just can't be healthy.
3) Reputation. Dumping stuff on the road gives others a bad impression of our hobby.
I can think of only one reason to leave your waste valve open when driving.
1) Laziness..
Ok, just thought of another
2) Lack of consideration for others.
I have seen a motorhome going round a roundabout and huge gushes of waste water rushing out over the road. A motorcyclist hitting this would not be anticipating it as it was a hot summers day. He could have slid off and under a lorry. This motorhome continued to dump waste water every time he went round a right hand bend or turn for many miles. If I recall this was on the way back from the Stratford motorhome show a couple of years ago.
1) You can put contaminants on the road which could affect other road users safety (motorcyclists)
2) Health issues, dumping your waste across a campsite as per the OP. No matter how clean your tank it just can't be healthy.
3) Reputation. Dumping stuff on the road gives others a bad impression of our hobby.
I can think of only one reason to leave your waste valve open when driving.
1) Laziness..
Ok, just thought of another
2) Lack of consideration for others.
I have seen a motorhome going round a roundabout and huge gushes of waste water rushing out over the road. A motorcyclist hitting this would not be anticipating it as it was a hot summers day. He could have slid off and under a lorry. This motorhome continued to dump waste water every time he went round a right hand bend or turn for many miles. If I recall this was on the way back from the Stratford motorhome show a couple of years ago.
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