Question on the Hole-in-the Wall Solution for CO2

[radiata]

When one makes a hole in one's outside wall for a pipe that will feed outside air into a skimmer, what do you use to prevent bugs and other critters from entering that pipe? Won't some sort of filter obstruct the flow of air?

 

[ecam]

I used that spray that expands around the hole to prevent entry. As for the pipe opening. I have a mosquito mesh I tied around the opening and the intake goes through a canister filter with carbon.

Anything that makes it through that quantlet should drown in skimmer. So either way. Don't see anything getting in

 

[Mark_C]

I used that spray that expands around the hole to prevent entry.

Actually called 'Good Stuff'

Also, a thought, you can fill the pipe with spiders and frogs.

 

[Trio91]

My wife would kill me if I poked a hole in the house

 

[ecam]

Did it in the part of the bsmt she doesn't go in and blended it in with the other overhead pipes.