Rob,
That was an attempt to gain inspection to the "hidden bilge" in
this old thread. Don't waste your time installing that inspection port.
I built up the wooden bracket to mount the Racor on so there is easier access to unscrew the bowl on the bottom of the filter.
![[Linked Image from j30.us]](http://www.j30.us/images/Racor_Filter_Seawater_Strainer_Hose_Connections.jpg)