Drain holes under elevating roof - location?

Perfectos · Nov 23, 2021

Run the A/c when in the van Driving, the A/C will remove an amount of moisture via normal operatin.

also when parked up / at home, whilst the weather is not raining, open all doors and the tailgate for an hour, believe it or not the outside air will have less moisture in it than inside your van, the result is the moisture in your van equalises with the ambient outside moisture in the air. (Exactly the same principle when you hang washing out)

Feggers · May 10, 2022

ArunAlec said:
I did a routine check of the rear drains, gently pushing a length of wire through from both directions. One was fine, the other not. The wire was not coming out on the other side! On investigation the tube between the two grommets was not connected. Meaning water would drain into the rear pillar.
To fix I removed the grommet from the rear hatch and using a cable tie as a guide, pushed through from the roof side, slid the tube over the cable tie so that it relocated onto the roof grommet when the hatch grommet was put back into place. The drain pipe seems to be a fairly loose fit so any force/pressure when clearing debris is likely to dislodge the tube.

Hi I think my drain pipes the back has the same problem and I need to be able put them back together ... could you re explain as its not easy if you havent done it before...to visualise what to do...thanks a lot...David

ArunAlec · May 10, 2022

Feggers said:
Hi I think my drain pipes the back has the same problem and I need to be able put them back together ... could you re explain as its not easy if you havent done it before...to visualise what to do...thanks a lot...David

Post 4 shows the 2 grommet. I prised the outer one (behind the hatch) out. Then juggled the pointed end of a nylon cable through from the drain hole (second photo) from the roof out through the hole where the outer grommet was then I slid the grommet over the end of the cable tie and back into position. The tie helping guide the grommet onto the drain pipe that is part of the drain hole grommet. I’m away in the van at the moment otherwise I’d draw a sketch to help explain! Hope that helps.

Feggers · May 11, 2022

ArunAlec said:
Post 4 shows the 2 grommet. I prised the outer one (behind the hatch) out. Then juggled the pointed end of a nylon cable through from the drain hole (second photo) from the roof out through the hole where the outer grommet was then I slid the grommet over the end of the cable tie and back into position. The tie helping guide the grommet onto the drain pipe that is part of the drain hole grommet. I’m away in the van at the moment otherwise I’d draw a sketch to help explain! Hope that helps.

Thanks again… il be on it this morning… so you need to be able to see the light through both holes..left and right - right !?

Feggers · May 11, 2022

Feggers said:
Thanks again… il be on it this morning… so you need to be able to see the light through both holes..left and right - right !?

Do you where the holes are at the front ? I can see one but it’s awfully hard to get to ?!

WelshGas · May 11, 2022

Feggers said:
Do you where the holes are at the front ? I can see one but it’s awfully hard to get to ?!

Have you pulled off the plastic cover over the hydraulic ram?

Feggers · May 11, 2022

Hi no not yet I. Did the back drains this morning and will try the front ones later this afternoon…the back left drain had become detached!!! So I’ve aligned those. thanks again.David

Feggers · May 12, 2022

WelshGas said:
Have you pulled off the plastic cover over the hydraulic ram?

Yes found that this morning and seems like both are bunged up... I should receive the syringe today from Amazon and try and free those.The water has made a mess of the textile lining though...bit of a bigger...

ArunAlec · May 15, 2022

Feggers said:
Thanks again… il be on it this morning… so you need to be able to see the light through both holes..left and right - right !?

I can see through one but not the other but they both work.
it‘s a daft design, having a push fit join where you can’t get to it!

Feggers · May 15, 2022

Yeah really strange idea… I think I’ve cleared both and the front drains too… thanks again…

FredFlintstone · Sunday at 9:50 PM

KGCali said:
Just got a borescope for my phone so thought I'd try to get a picture inside the roof of the front drain tube with all the bends to show why it's so hard to clean. Air pressure or water in a syringe and the safest ways

View attachment 67640

Hi, quick resurrect of this thread, so just for my understanding, if water is sailing out thro headliner, into dash and onto carpet. And LH side drain speed is dreadful.. Where's the water leaking from?
Presumably it's 'overflowing the drain, can someone educate me where exactly?

I'll check the outlet thro the firewall tomorrow- hopefully it's that that's blocked and not the drain tube punctured or separated worried..

Any suggestions welcome

Best regards

KGCali · 2024-05-06T07:37:29+0100

FredFlintstone said:
Hi, quick resurrect of this thread, so just for my understanding, if water is sailing out thro headliner, into dash and onto carpet. And LH side drain speed is dreadful.. Where's the water leaking from?
Presumably it's 'overflowing the drain, can someone educate me where exactly?

I'll check the outlet thro the firewall tomorrow- hopefully it's that that's blocked and not the drain tube punctured or separated worried..

Any suggestions welcome

Best regards

Normal suspect in the grommet the hydraulic oil lines pass through, reseal the hole around the lines and also the sides and bottom of the grommet taking care not to block the drain holes. Also check the grommet for any splits.

If you've had the front roof cowl replaced due to corrosion the seal around this can also crack and allow water into the headlining etc. so check and reseal.

Always good to flush the roof drains every time you wash the van, only takes 5 minutes with a syringe