I have mixed feelings about "Bubble Covers". I think they are a very good code requirement but there are a few issues.
1. They can keep the water out of the receptacle if installed properly ie: vertical and horizontal as is needed.
2. Seal with caulk or silicone when the surface is not conducive to the gasket provided with the unit.
3. The budget minded ones look like sit.
4. They are easily broken off when exposed to even casual usage.
5. The customers are offended by the appearance of the production models but I think the customer's standards might rise if they were offered some optional models.
6. Keeping insects out is always a problem.
7. I would not install a surface "Bubble Cover" on my own house but would opt for a recessed model that only extends out from the surface about 1/2 inch or one with a expandable cover.
Okay I'm off my soap box.
