D
Debra Blatnik
To all you owners of the H37 and H37 cutter...The holding tank vent as installed by the factory appears to have some problems. It contains a "trap" just like you would find in a sink (and yes it collects water and other stuff). The vent goes down behind the shower and through the access at the base of the locker at the V-berth. It then goes UP to the holding tank vent. The one in my boat was a solid mass. I guess that explains why the previous owner just plumbed the head to the thru-hull.The easy correction is to run the vent across the top of the locker. Requires a new hole under/behind the shower seat, and on into the space that contains the holding tank.