Why silicone in addition to suction cups? I found that it took me over a month of adjustments to find spraybar flow patterns I was happy with.
I use digital timers with battery backups and grounding terminals, also my marineland timers (the "electro-mechanical" type that I think you meant when you said winding) have grounds as well.
Look into that power center. There are some reviews out there that blame it for fires. Never experienced it myself. I like my coralife products but that one I am wary of.
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