Lid on bottle?
Thinking out loud here......
Fill black tank up with water and see if bottle will float around on top. Hold toilet Valve open , water turned off, and see if you can see it. Coat hanger!
Or rod you use to pull down your awning.....
one of those pincher arm things used to pick things up from the floor.
I would not leave it in there if at all possible
Jim & Kim from Colorado
2014 Eagle 30.5 RLS
2015 Dodge 3500HD SRW 6.7L
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