[Public-List] Waste pumps

[Mike Lehman]

Hey when you are as close to Washington DC as we are, the shit flows 
quickly. Did you see this article in the Washington Post this morning:

http://www.washingtonpost.com/politics/exploding-toilets-injure-2-federal-workers/2011/09/28/gIQA3IDt5K_story.html?wpisrc=emailtoafriend


-----Original Message----- 
From: Gordon Laco
Sent: Thursday, September 29, 2011 9:58 AM
To: Alberg 30 Public List -- open to all
Subject: Re: [Public-List] Waste pumps

Lovely, Roger

When your email below came in I was sitting here trying to come up with
something witty about pumping sewage that quickly....

Gord 426


On 29/09/11 9:55 AM, "Roger L. Kingsland" <r.kingsland at ksba.com> wrote:

> Mike,
>
> One minute, ten seconds!  Have you ever thought of using it as a bow
> thruster?
>
> Roger 148
>
>
> -----Original Message-----
> From: public-list-bounces at lists.alberg30.org
> [mailto:public-list-bounces at lists.alberg30.org] On Behalf Of Mike Lehman
> Sent: Thursday, September 29, 2011 8:09 AM
> To: Alberg 30 Public List -- open to all
> Subject: Re: [Public-List] Waste pumps
>
> The macerator pump is used to empty the tank in the event that I cannot 
> get
> to a pump out station or when off shore. I have tested the macerator with
> the 1" discharge and it empties a full 14 gallon tank in 1 minute and 10
> seconds...I actually timed it. I used a simple PVC "T" fitting with one 
> side
>
> of the "T" to the deck pump out and the other side to the macerator pump. 
> As
>
> long as the connections are tight (and they better be or you would have a
> sewage leak) you get a positive vacuum to empty the tank at a pump out
> station. This has worked fine for 15 years.
>
> -----Original Message-----
> From: John Boor
> Sent: Thursday, September 29, 2011 7:51 AM
> To: Bill Wallace ; Alberg 30 Public List -- open to all
> Subject: Re: [Public-List] Waste pumps
>
> If you are installing a holding tank why do you need to size the macerator
> pump output to a through hull.  I am rebuilding a boat and have decided to
> use a macerator pump to the tank, the 1" output from the pump to the tank
> I believe is not large enough to allow the tank to equalize when being
> emptied so I have installed a vacuum relieve valve made by Dometic
> company.
>
>
>> Hi,
>>
>> I'm finally going to install a holding tank on my boat.
>> Anybody have any recommendations about waste pumps?
>> Manual vs. electric?
>> Macerating impeller pumps vs diaphragm?
>> I was originally going to go with the Jabsco electric
>> macerating pump since they seem pretty common, but
>> they have pretty bad reviews on westmarine.com
>> and anyway I would have to adapt the 1" output
>> to my 1.5" through-hull.
>>
>> Any thoughts?
>>
>> SG
>>
>>
>> ------------------------------------------------------------------
>> Stephen Gwyn                 |  Tel: 1-250-363-3136
>> Dept. of Physics & Astronomy |  Fax: 1-250-363-0045
>> Univ. of Victoria            |  Cell: 1-250-885-6969
>> PO Box 3055                  |  E-mail: gwyn at uvastro.phys.uvic.ca
>> Victoria, BC  V8W 3P6        |  http://orca.phys.uvic.ca/~gwyn
>> ------------------------------------------------------------------
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