Japanese House

**DrAndy** · 29-04-2010, 05:47 PM

Originally Posted by Old Monkey

This vent should and will be "coiffed" with an inversed "U" to let the methane gaz produed go out, but not air.

you put water in the U?

oh no, it is inverted

so the air is kept out by the pressure of the methane? why do you need an inverted U?

**Old Monkey** · 29-04-2010, 06:27 PM

Originally Posted by DrAndy

Originally Posted by Old Monkey

This vent should and will be "coiffed" with an inversed "U" to let the methane gaz produed go out, but not air.

you put water in the U?

oh no, it is inverted

so the air is kept out by the pressure of the methane? why do you need an inverted U?

Rain, for control of what could fall in.

Thread: Japanese House