[C320-list] Accessing holding tank vent

[Edward Thompson]

Three years ago after purchasing our 320 we noticed odor in the head which was apparently coming from the holding tank. After reading up on the possible causes and the experiences of 320 owners, I determined that our problem was most likely the thru hull vent being too small. I proceeded to pull out the medicine cabinet and everything else that was in the way and discovered that the vent hose from the holding tank was loosely attached to the thru hull vent. It immediately became clear to me that the holding tank was venting into the cabin! Everything that I read suggested that a larger thru hull vent was required. However, decided that I was not ready to go that far and thought that if I could just get the vent hose to fit tightly on the attachment to the thru hull vent it might fix the problem. So I proceeded to wrap some electrical tape around the thru hull vent fitting and then reattached the vent hose tightly and secured the hose clamp. Thankfully, we haven't had an odor problem since. I hope this info helps.

Ed Thompson
Bellavia Hull # 739 - 2000 year
Wells Cove Marina - Kent Narrows, MD

-----Original Message-----
From: C320-list <c320-list-bounces at lists.catalina320.com> On Behalf Of Crosby Roper
Sent: Monday, June 18, 2018 4:37 PM
To: C320-List at Catalina320.com
Subject: [C320-list] Accessing holding tank vent

Hi all

The thru Hull that vent the holding tank on my 2005 C320 is loose and I’d like to tighten it. After reading some vent discussions I seems the area is best accessed by pulling medicine cabinet. I need some advice on how to pull it. Also is there perhaps any easier way to tighten it. Thanks

Crosby Roper
Tethys
San Diego,Ca
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