Kilo I can tell you what happens to those large water bladders. We had a couple of growers in our county that made the mistake of placing a explosive booby trap on a trail used by gold miners to get to a steep portion of the Yuba River.
Ticked off the miners that found it, they came into my office and reported it and that those idiots had a marijuana field in the canyon of about 1,000 plants.
I and our eradication team did a hike in. found their camp, but no one in camp. They had over 900 plants and two big water bladders that were fed from a uphill spring with a quarter mile of pvc pipe with a drip irrigation system.
Since the canyon was so steep that we had to use ropes in one section to get in, we piled the water bladders and all other equitment into one big pile and I had 8 accidental discharges of a 12 gauge shotgun loaded with double ought buckshot.
Had to use a helicopter to get the plants out with a sling underneath the copter we loaded as it hovered in place.
RELH