Airvent under Floor

It is time to place circulation fan from door-step under floor.
Remine you; this project I made last year.
From botom side it looks like on 1picture.

Before I did changes, I run Sprinter over some water-lakes.
Then checked vent under
It was a test if any water runs behide bugs screen-net.
A positive air presure in a cab and screen-net did not alowed water run into elbow plastic pipe.

Airvent under Floor step2

2.Placed circulation air-fan into 4inches ruber pipe conector.
Covered with bugs screen and mounted under into exiting 4inches plastic elbow.
The fan under makes less noise in a cab during my night sleap inside

p.s. for this botom airvent I did used computer case circulation fan. It pamps air from outside into my Sprinter when I sleap inside,or park over hotday.

Airvent under Floor,Step part

From a side door step it looks like this pix.
12V fan vire pulled from same pipe.
Drilled a hole for wire conector on a left side of pipe.
small peaces of driled plastic got static and sticked all over like a snow

Airvent under Floor, Plug

in a Navy ALL HOLES SALL HAVE PLUGs
Now, We are ready for a Flood

1)p.s. plug sits on the step ege by welcro-tape

2)p.s. To Fart or Not to Fart, Navy men has to breaze.
SCUBA tank has limited capsity