I believe that "grey pipes" refers to drain or sewer pipes as opposed to white pipes that carry the fresh water to sinks and toilets. The color terms are probably used more frequently in camping trailers than they are in the home.
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ARE VILLAGERS OLD OR ARE THEY RECYCLED TEENAGERS
At my age rolling out of bed in the morning is easy.
Getting up off the floor is another story.
"SMILE... TOMORROW MAY BE EVEN WORSE!"
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