Before Installing Tonneua Cover Drain Tubes, I'm Asking For Advice

[Goose55]

I need to install two rain water drain tubes on each end of the bottom of this retractable tonneau cover canister, and run them out through the bulkhead of the 8 foot bed of my 2019 3500. I see here at the very bottom next to the rubber bed matt an oval shaped--what is it, a removable plug? Its maybe 2 x 1-1/2 inches. There's also another one on the passengers side. The drain tube is just shy of 3/4 inches wide. My gut tells me that--if that oval is a removable plug--running the drain tubes through that low would create issues when I run stuff that far back. Instinct is telling me to instead drill a hole much higher--maybe 2 or 3 inches below the canister. What do some of you think?

Thank you!

 

[SniperDroid]

My 2500 had ports on the side closer to the top that let me run the drain tubes for my MX4. Look on the side before drilling your new rust hole...

 

[GTyankee]

i grabbed this image from

BobSacomano​

on here


choose hole 1 or 2
If you load the bed with something that could cut or pinch the hose, use hole #1
otherwise, just use hole #2
both holes drain out at the same place

 

[Goose55]

i grabbed this image from

BobSacomano​

on here

View attachment 521568
choose hole 1 or 2
If you load the bed with something that could cut or pinch the hose, use hole #1
otherwise, just use hole #2
both holes drain out at the same place

Mine is a 2019 3500 so I don't know if I have 1 or 2. 1 would be too high

 

[SniperDroid]

I used hole #1 in my 2019 2500...

 

[Goose55]

I used hole #1 in my 2019 2500...

The bottom of the canister, where water drains, is lower than that # 1. I will look to see if I have that #2 port. If not, I'm going to have to drill.

 

[Goose55]

i grabbed this image from

BobSacomano​

on here

View attachment 521568
choose hole 1 or 2
If you load the bed with something that could cut or pinch the hose, use hole #1
otherwise, just use hole #2
both holes drain out at the same place

I did find the #2 port and the drain tube is now installed there. Thanks, all!