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head tank smell

Discussion of AC's, plumbing and sanitation related issues.
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Scurvy Dog
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Posts: 19
Joined: March 7th, 2013, 9:31 pm
Vessel Info: 1987 Carver 3207

head tank smell

Postby iceman3500 » June 18th, 2015, 1:37 pm

We have a 1987 3207. I've poured sewage treatment liquid into both tanks after every pump out since we've had it. Lately, there is a god awful sewage smell every time either unit is flushed. It comes from the stern and is even noticeable while under way. The tanks must be vented out the stern but I'm not sure. I've seen in-line filters on various sites and wonder if they work? Does anyone with a 3207 know how the tanks are vented? If there are vent lines, where do they run and what size are they? I've looked through the manual but the information is very generic. Any help is appreciated.

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Posts: 2440
Joined: February 5th, 2013, 9:24 pm
Vessel Info: 1995 Boston Whaler Rage15
1987 3697 Carver Mariner
1988 Cougar 46 Kevlar Vee offshore
1969 15' Glasspar / 1967 Johnson Electromatic 85
1996 Boston Whaler Rage 15
Location: Saint Joseph,Mi
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Re: head tank smell

Postby waybomb » June 18th, 2015, 6:03 pm

Could be your hoses, especially if original. Thye become impregnated from the inside, and it works its way all the way through the hose.
They make new hose now that allegedly is impervious.
1969 Glaspar Avalon /1967 Johnson Electromatic 85
1987 Carver Mariner
1988 Cougar Kevlar 46' with triple blown 572 ci
1995 Boston Whaler Rage
Past - 1988 2807, 1989 4207 Aft
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Joined: July 29th, 2013, 11:35 pm
Vessel Info: 2000 Carver 506
Location: Georgian Bay
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Re: head tank smell

Postby Lyndon670 » June 24th, 2015, 2:48 pm

I would concur with Fred with the septic hoses. However, if you google Noflex Digestor, you will see tons of positive hits from many yacht forums where people have used it. I use it all the time and can't say enough about it. It may be all that you need to do....
2000 Carver 506
Volvo 7.4TAMD
Queens Cove Marina
Georgian Bay, Ontario
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Mariah's Song
Scurvy Dog
Scurvy Dog
Posts: 20
Joined: June 29th, 2016, 5:57 pm
Vessel Info: 1981 Carver 3007 Aft Cabin
220 Crusaders
Home Port: Marina Del Rey
Orillia, Ontario
Location: Lake Simcoe, Ontario
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Re: head tank smell

Postby Mariah's Song » June 29th, 2016, 7:03 pm

Where are you buying the Noflex from in Ontario?
We're on Lake Simcoe and frequently pillage and plunder Georgian Bay.

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Re: head tank smell

Postby Viper » June 29th, 2016, 10:20 pm

Starport around the corner from you sells it. They also sell one that I am going to start using called Super Enzo from Aqua-Tek. It's supposed to be better than Noflex and I've heard good things about it.

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