probably because you have not had a super clogged drain. you have been lucky with that. but hey thats why vegas makes money!

 

Thank you for the share, this has been very helpful.
Recently my Hummer H3 Sunroof has been leaking onto the floor and it was discovered that a drain tube had come loose.

 

I had a shop clean the front drains while it was in for service. They blew them out with compressed air and said I was good to go. Family emergency came up, I left in my small car as it was 1,800 miles one way, then returning 2 months later, I noticed that all the windows were fogged up. Upon opening the door, 4-5" of water poured out on my legs, etc., They blew the hoses off the spigots up in the roof by the A-pillars. Lovely.

I cut out the end of the grommets so there would be less restrictions and I also opened up the access holes in the dash so alleviate the pain and cutting of flesh issue. That really helped. And I also created a new tool that makes the cleaning process fast and easy in the future, which is a flexible funnel that I fit onto the end of the hose on my shop vac and I vacuum those lines out up at the sunroof opening and they flow fast and clean after that process. Takes about 5 minutes now and I do it a few times a year as I live in the mountains with no garage or carport and it's not a clean environment.

 

SAME CLOG HAPPENS ON ALL VEHICLES WITH A SUNROOF!
Don't park under a tree!

 

I fixed my sunroof drains years ago and I started to get water on my passenger floor and rear passenger carpet. I checked my sunroof drains and found no clogs or leaks at all. I can start tearing things apart to find it, but is there another culprit someone else has come across to save me a few hours?

 

Roof rail RivNuts.