I only use silicone for threaded ABS or PVC bulkheads.
It's a great lubricant which makes for smooth tightening.
I used to use teflon tape but it was a real pain to clean off the threads if I took it apart. Teflon tape didn't allow for smooth tightening. The nut would always "jerk" as it tightened up.
If you've ever used a torque wrench, you know what I'm talking about.
You want a smooth tightening, not a jerky one.
I waited 1 day before filling, but 1 day is nothing in this hobby.
Make sure the rubber gasket on the wet side seats evenly.
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Mitch
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