I have attempted successfully to follow Peggy Hall’s advice on holding tanks
with success except that I can’t find an appropriate 1” vent for the port bow which would adequately prevent water
intrusion. I am thinking of having my 1” vent to end in a 1” tee and having the two tee branches lead into 2 1/2 inches of 1” hose to 5/8x1” reducing barbs that then vent into two conventional 5/8” vents at deck
level, separated by 6” Does anyone have a better idea? A 1” mushroom vent won’t work
on the port bow and would also look terrible. Peggy? Or anyone?