muckdoc

I have a 2016 Lariat 6.5 bed with drop in bedliner. Looking to add Hard cover folding tonnaue. I like the look of the flush mount covers, most of which have rails and DRAINS. My question is about the drain. Some instructions for these suggest running the drain through the grommet located in the front of the bed BODY. With my drop in bedliner, there is no access for this particular grommet. It would seem easy enough to place the drain through one of the bedliner grommets, effectively draining between the liner and bed body. I know this space is not completely dry and will drain through gaps in the body, but I'm not sure I'm a big fan of regularly dumping rainwater in this space. Your thoughts? Is this nothing to worry about?

Option B is to cut a hole in the bedliner in the region of the body grommet, but not sure I like this option.

Option C is to get Tonnaue that sits on top of the bed of the truck, like Extang Solid Fold 2.0

Maine-iac

I'd go with C

cthusker

Why have a toneau cover that lets water get into the bedliner to start? I had a BAK Roll up and eventually hated the thing because of water getting in and also freezing shut in the winter. Could never keep anything in the bed really 100% dry. Leaves etc were always clogging the bedliner drains which was another PITA to deal with!

The best solution to keeping water out of your bedliner is a cover that goes over the bed rails IMO. No it doesn't look as good as the other design but long term it's superior in keeping things dry under it. BTW even the fold up covers can have issues over time with leaking.

Mlarv

I agree I have the Extang full tilt also and it works great.

dnorf150

I tucked my drain tubes through the precut holes for front tie downs; the little water that gets to the channels drops under the bedliner and out the back at the tailgate. My bed has always stayed dry.

Tetramethyl

Same here.

Sawdust102

Used a holesaw to drill a hole lining up with hole in the top corner of the bed. Then just insert the smooth part of the tube into the hole. Cut just enought length for a tight fit.

muckdoc

Thanks for the responses.

CT: need cover for security to lock things in, but removable to haul larger loads. I don't expect it to be 100% waterproof, but I'm hoping it's mainly dry. With the bedliner and the ridges it has, should keep the contents high enough to remain dry with what little moisture gets in. The bedliner acts like a tub in the rain, pooling water up near the cab. I'm not going to get that much moisture in there with a hard top foldable, will I? The extant I referenced looks like it sits on rails of truck like yours, probably similar seal there.

TazFL

i have a backflip tonneau cover and love it. Had one on my 05 for eight years with no trouble. You can fill the drain holes with silicone sealer and the rain water will drain out the back near the tail gate. Never had any pooling in my drop in bed liner

thundertracks

Never hooked up the drain hoses on my Bakflip, very little if any water gets in bed.