Fuel vapour pipe connections

My type4 has 2 fuel vapour pipes meeting in the middle with a knackered old split t piece. My question is, where and how should I vent these. I don't have an air filter. Presumably I don't want to leave them open as the fumes will enter through the inspection hatch
Thanks

 

You don't have an air filter?

 

No, just 2 carbs on a 2 ltr

 

With air filters. Tap a connecting pipe into the filters

 

So I just make a hole in either of the filters then run a pipe of the t piece into the filter?

 

Yup!

 

Cheers guys

 

Don't put a nut inside the filter.

 

Good point zed, don't want anything falling in. If I just crudely stick the pipe through the filter tho,that would be ok wouldn't it? It's only fumes going in so it shouldn't move about or pop off

 

Drill a hole in one of the caps and stick a rubber grommet in it. That should hold the pipe.