Originally Posted by onehundred80
A heavy duty plastic bag will be fine. Use the RTV or a silicone sealant, don't use too much and the O-rings. You can use any suitable O-ring, buying from a dealer will get you the same ones as you can buy, but they will cost more, much more. Just get the correct size.
If you added holes they should not be under the pump unit as the bag may cover and seal them. Others removed the plastic plugs in the well.
Excellent information! thank you.
I didn't drill any holes down there, the drain plugs were removed with some needlenose pliers, theres actually some drain plugs in various spots in the trunk well on the right side where the module sits, I got the 2 main ones that sloped down ward in the lowest position where water would most likely sit if it was to be used as a catch trap. In this case, the two drain plugs were removed when there was the 2 inches of water in that trunk well and it certainly moved that water out of the trunk well REAL FAST! if there is one hole that would be underneath where the plastic bag would hold the module inside the foam box, at least I know that if any water would somehow get underneath, it would certainly fly on out quick, then again, if the foam box is in the way making a seal it won't really make a difference then, it still seals that spot out. From what I can see, the angle of the black stereofoam stand that sits below the foam box, the angle of it has a shape in the bottom where it doesn't cover the section of where my holes are placed so it makes those two spots perfect for draining area's. Side by side, at the lowest point of the trunk well for easy water flow to drip out.