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Installing Top Side Controller - Best Caulk to use? Any install tips?

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Finally getting around to swapping the guts on my tub, went with a Balboa VS Spa Control Kit based on the helpful recommendations on this forum.

Removed and cleaned the old controller and looking for tips and suggestions on how to do a leak proof install. I'm a little paranoid since the water and humidity killed the old controller, also not too impressed with the double sided tape that came with the Balboa kit. 

Plan is use use the included doubled sided tape, once it dries line with some bath caulk. Went with GE Advanced Silicone 2 Clear Kitchen and Bath Caulk. If anyone has an suggested products and installation tips would love to hear them.

Thank you


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BThis stuff is indestructible.   While I've never used it on my hot tub I have on everything else exposed to water. Including the seams of my RV roof and windows. 18 years and still holding up. Doesn't shrink or harden and is mold/mildew resistant.  Only drawback is you can't smooth it out with a finger like regular caulk.


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