Forum Discussion

Explorer II

Aug 22, 2017

Drilling Hole IN I Frame

I am in the process of installing a black tank flush kit. There is no access to the side of the trailer for the Black Tank rinse inlet unless I drill a hole in the 10" I frame. Can I drill a 3/4 hole in the I frame without weakening any structural integrity to the frame?

Seeking Advice

15 Replies

midnightsadie
Explorer II
Aug 23, 2017
X2 it should have a sleeve .
downtheroad
Explorer
Aug 23, 2017
Should be fine...
You might want to put some kind of protective sleeve around the pipe where it goes through the frame to keep the sharp edges from damaging it as you bounce down the road.
JesLookin
Explorer
Aug 22, 2017
Pretty sure if you center hole in middle of I beam, you'll be ok
newman_fulltime
Explorer II
Aug 22, 2017
bet if you cut a hole in the undercover and see a way to drill upwards you can find a way
GordonThree
Explorer
Aug 22, 2017
I'm no engineer but that sounds ok to me.

Keep away from stress areas and edges is all I'd recommend.