[Public-list] RE: Head Holding tank
Gordon Laco
mainstay at csolve.net
Tue Sep 7 11:40:15 PDT 2004
Hi there -
I put a new top on my #426's tank this spring...the project was a complete
success. (Imagine my relief...)
I discovered that the company that made the plastic (lexan?) tops in Toronto
was not only still in business but still had the original patterns. They
made me a top plate for about $115 including shipping; it fit perfectly.
I used Sika Flex to bed in down, and fastened it with #12 Stainless Steel
self tapping screws.
Gord
Surprise #426
> In my A30 (#500 1972), the holding tank consisted of a metal(too heavy to be
> aluminium) plate riveted onto the fibreglass undersole. Pictures of a
> similar install can be seen at
> http://www.alberg30.org/maintenance/disorganized/head/under-sole/ although
> it appears that the latter has a glass top. In any event, the metal rivets
> and much of the sealant had deteriorated and previous owners had repeatedly
> glassed and caulked over the seams and top of the tank. Believe me, having
> drilled out the rivets and peeled off the tank top over the weekend, to find
> a completely deteriorated and corroded mess inside, I can only attest to the
> comments below. I am planning on installing a polyethelyne tank myself.
>
>
> Chris Lawrence
> 24 Scarborough Road
> Toronto, Canada M4E 3M5
> T: 416-698-5136 F: 416-698-8953 E: chris.lawrence at sympatico.ca
>
>
> -----Original Message-----
> From: public-list-bounces at alberg30.org
> [mailto:public-list-bounces at alberg30.org] On Behalf Of George Dinwiddie
> Sent: 07 September 2004 11:02
> To: Alberg 30 Public List -- open to all
> Subject: Re: [Public-list] RE: Head Holding tank
>
>
> Roger,
>
> I advise reading Peggie Hall's "Marine Sanitation Fact vs. Folklore"
> (http://www.overboardboating.com/maintenance/tipsmsds.asp among other
> places). An excerpt:
>
> Although you'll see aluminum and stainless holding tanks, no metal
> of any kind should ever used to hold sewage. Urine is the most
> corrosive material it's possible to put next to any metal. If you
> doubt me, gentlemen (ladies will have to take your word for it),
> notice the dividers between urinal stalls in men's rooms. If that
> facility has been open for more than a week, no matter how clean
> and well-maintained it is, even though the dividers are stainless
> steel coated with enamel you'll see rust stains from the bolts
> that attach the dividers to the tile. While the walls of a metal
> holding tank may last a decade or more, the welds will typically
> begin to leak at a seam or a fitting in two to five years,
> and the tank will have to come out for repair or replacement.
>
> - George
>
> On Tue, Sep 07, 2004 at 10:35:59AM -0400, Roger L. Kingsland wrote:
>> Mike,
>>
>> Could you direct me to some of the info you cite. I checked with both
>> my NA and a tank manufacturer I found on the web and they said
>> aluminum was not a problem. If I need to go w/ SS so be it, but the
>> material cost about four times as much as aluminum (so, what else
>> should one expect whaen owning a boat).
>>
>> Thanks, Roger
>>
>>
>> ----- Original Message -----
>> From: "Mike Lehman" <sail_505 at hotmail.com>
>> To: <public-list at alberg30.org>
>> Sent: Tuesday, September 07, 2004 10:09 AM
>> Subject: Re: [Public-list] RE: Head Holding tank
>>
>>
>>> Roger,
>>>
>>> Don't use aluminum for waste holding tanks. There is loads of advice
>>> on
>> the
>>> web and loads of good reasoning why to avoid aluminum.
>>>
>>>
>>>
>>> Mike Lehman
>>>> <((((º>¸.·´¯`·...¸><((((º>
>>>
>>>
>>>
>>>
>>>
>>> ----Original Message Follows----
>>> From: "Roger L. Kingsland" <rkingsland101 at ksba.com>
>>> Reply-To: Alberg 30 Public List -- open to all
>>> <public-list at alberg30.org>
>>> To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>
>>> Subject: Re: [Public-list] RE: Head Holding tank
>>> Date: Tue, 7 Sep 2004 09:54:45 -0400
>>>
>>> Mike,
>>>
>>> I agree with you RE taking measurements. If intended to go under
>>> the aft end of the of a V berth, that tank would not come close to
>>> fitting in #148 (1966, no liner). I am doing custom aluminum tanks
>>> and the best I can do
>> is
>>> 18" deep and 18" port/starboard (about 27" fore/aft) for a tank that
>>> is triangular in cross section. Plus, the shape in plan is a
>>> parallelogram, not a rectangle. With a custom tank fitted to the
>>> available volume
>> (except
>>> curving the tank bottom to conform with the curve of the hull) I
>>> will get about 18 gallons. I can't imagine getting more than about
>>> 10 to 12 with a stock tank. The stock one I removed held 6 gallons.
>>>
>>> Roger
>>>
>>>
>>> ----- Original Message -----
>>> From: "Mike Lehman" <sail_505 at hotmail.com>
>>> To: <public-list at alberg30.org>
>>> Sent: Tuesday, September 07, 2004 8:55 AM
>>> Subject: RE: [Public-list] RE: Head Holding tank
>>>
>>>
>>>> Maybe they cahnged some things since I did mine - now it looks
>>> like the 5057 > is the right one. I am doing this from memory , but
>>> it seems to the the > height was 16" not 19" as shown in the 5022.
>>> I will take some more > measurements and let you know. I also,
>>> strongly advize that befor
>> buying
>>> any
>>>> tank , that you make careful measurents of your boat since we
>>> have
>> found
>>>> some differences from one boat to another.
>>>>
>>>>
>>>>
>>>> Mike Lehman
>>>>> <((((º>¸.·´¯`·...¸><((((º>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> ----Original Message Follows----
>>>> From: "Chris Lawrence" <chris.lawrence at sympatico.ca>
>>>> Reply-To: Alberg 30 Public List -- open to all
>> <public-list at alberg30.org>
>>>> To: "'Alberg 30 Public List -- open to all'"
>>> <public-list at alberg30.org> > Subject: RE: [Public-list] RE: Head
>>> Holding tank > Date: Sun, 5 Sep 2004 23:41:23 -0400 >
>>>>
>>>> Mike
>>>> I looked at the Kracor website and Mold 5022 shown in your drawing is
>>> listed
>>>> as having 17 gallons, not 15. So either Kracor has increased the
>> capacity
>>> of
>>>> the mold by using thiner materials (the outside dimensions are
>>> the same as > in your drawing), or you have 2 more gallons of
>>> capacity with which to > surmount unforseen circumstances...see
>>> link below >
>>>>
>>>> http://www.kracor.com/support/holdingtanks.pdf
>>>>
>>>>
>>>> Chris Lawrence
>>>>
>>>> Cirrus #500
>>>>
>>>> 24 Scarborough Road
>>>> Toronto, Canada M4E 3M5
>>>> T: 416-698-5136 F: 416-698-8953 E: chris.lawrence at sympatico.ca
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: public-list-bounces at alberg30.org
>>>> [mailto:public-list-bounces at alberg30.org] On Behalf Of Chris Lawrence
>>>> Sent: 25 August 2004 18:43
>>>> To: 'Alberg 30 Public List -- open to all'
>>>> Subject: [Public-list] RE: Head Holding tank
>>>>
>>>>
>>>> Thanks Mike - this helps a lot - your install looks A1!
>>>> The tank I have is in the undersole, and I believe it was factory
>>> installed.
>>>> The previous owner had glassed over the entire surface and
> subsequently
>>>> caulked all around it; however it leaks and is now beyond repair. I
>> think
>>> an
>>>> install in the forward berth makes more sense, because it is
>>> always better > to be able to see the bilges and I am thinking I
>>> will try and copy what you
>>>> have done.
>>>>
>>>> Thanks again and best regards
>>>>
>>>> Cirrus #500
>>>>
>>>> Chris Lawrence
>>>> 24 Scarborough Road
>>>> Toronto, Canada M4E 3M5
>>>> T: 416-698-5136 F: 416-698-8953 E: chris.lawrence at sympatico.ca
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: public-list-bounces at alberg30.org
>>>> [mailto:public-list-bounces at alberg30.org] On Behalf Of Mike Lehman
>>>> Sent: 25 August 2004 11:38
>>>> To: public-list at alberg30.org
>>>> Subject: RE: [Public-list] where is #277?
>>>>
>>>>
>>>> My boat is hull #505 and I installed a Kracor 14 gallon tank under
> the
>>>> v-berth on the portside, just in front of the bulkhead. Did your boat
>>> have
>>> a
>>>>
>>>> factory installed tank, or is the present tank from a previous owner?
>> My
>>>> boat did not have a tank. To see some pictures of the
>>> installation go
>> to:
>>>>
>>>> http://alberg30.org/maintenance/disorganized/head/
>>>>
>>>> Hope this helps.
>>>>
>>>>
>>>>
>>>> Mike Lehman
>>>>> <((((º>¸.·´¯`·...¸><((((º>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> ----Original Message Follows----
>>>> From: "Chris Lawrence" <chris.lawrence at sympatico.ca>
>>>> Reply-To: Alberg 30 Public List -- open to all
>> <public-list at alberg30.org>
>>>> To: "'Alberg 30 Public List -- open to all'"
>>> <public-list at alberg30.org> > Subject: RE: [Public-list] where is
>>> #277? > Date: Wed, 25 Aug 2004 11:04:33 -0400 >
>>>> Has anyone replaced a waste holding tank recently and if so any tips
>> and
>>>> what did you replace with? Thanks
>>>>
>>>> Cirrus #500
>>>>
>>>> Chris Lawrence
>>>> 24 Scarborough Road
>>>> Toronto, Canada M4E 3M5
>>>> T: 416-698-5136 F: 416-698-8953 E: chris.lawrence at sympatico.ca >
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