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Marko Bewersdorff wrote:
So keep those filters from collapsing.
I was concerned about this, so I built a vacuum relief valve,
which is an integral part of my filter box. In the unlikely
event of a filter plug due to dirt or more likely ice, it will
simply overcome the spring pressure and allow unfiltered air
from inside the cowl to flow. I probably won't even know if it
has opened.
Todd, rig a micro switch to light a LED on the panel when the spring opens. That'll be a good indication of when the filter needs cleaning. If the filter never clogs, that will indicate that a filter is nothing more than an unecessary airflow restriction (no clog == no dirt == why have a filter?)
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----Because I can----
http://www.ernest.isa-geek.org/
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