Considering how quickly my last Riley Riddle was solved I thought I'd try again.
my prefix causes you trouble
my suffix people have double
my infix you find swimming
this can stop you from dripping
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An ink blotter.
A blot or stain might get you in trouble with your mom
(I'm not sure how the suffix part works)
an otter you find swimming and a blotter stops ink from running or dripping.
Could it be
Pot. Gets you in trouble.
Ring. The only one not sure about. Perhaps "people have double" because you often buy two rings, like in marriage?