[TRC-SS]

Originally Posted by Steve@HPE

Lets try to take a look at this issue by the numbers. If anyone is interested in the math behind the numbers I use below let me know, but I don't want to confuse the point I'm trying to make here.

The splash trays will contain and expel more water than will enter the HEX Vent ports during even the most severe rain storm. For details on that claim, continue reading.

First a couple key metrics on the splash trays. The volume, for one, is 24 cubic inches and it's drain orifice will expel water at a rate of 0.25 cubic inches per second, or 900 cubic inches per hour.

On an average day during peak rain month (August) in Miami, the rainfall is measured to be 0.29". In terms of water volume captured by a typical rain gauge, that's 0.141 cubic inches. So, in a 24-hour period the rain gauge captures 0.141 cubic inches of water. The HEX Vent opening is 47% larger than the opening on a typical rain gauge. So we can assume 47% more water will enter, which makes the average volume entering them, in a 24 hour period, in Miami, 0.207 cubic inches.

It would take over 10 days for the trays to overflow even if they didn't have drain orifices. Moreover, it would take less than a second to drain the rainwater that would enter the HEX Vents on an average peak rain season day in Miami.

Finally, let's assume all the rain for the peak month in Miami, 8.63", fell in one hour. That's a rain gauge volume of 4.2 cubic-inches, and a HEX Vent volume of 6.2 cubic inches. The splash trays can drain that volume of water in 20.8 seconds.