[Alberg30] Sealand holding tank model number?

[Mike Lehman]

A few years ago I purchased 23 each, Karcor model 5057 tanks and installed 
several of them in Albergs including one in my own Alberg #505. The tanks 
fit perfectly in the boats with liners and there is a 1/2" verticle 
interferrence on boats without liners. (The forward cabin plywood in the 
older boats is lower by and couple of inches). The fittings were all mounted 
to the tops of the tanks with a "pick-up" tube inside the tank on the 
discharge side. I had all of the fittings installed by the factory, since 
welding Polyethelene is a difficult. The tanks have been in service for 4 
years (or more) now and work fine. The most important thing is to vent the 
tank very well with two vent lines. This will allow for an exchange of air 
which discourages the growth of bacteria, which causes odor (it's not the 
waste that cause odor)in holding tanks, especially dark colored flexible 
tanks.


----Original Message Follows----
From: "Chester and Jan Koop" <cjk at tir.com>
Reply-To: public-list at alberg30.org
To: <public-list at alberg30.org>
Subject: Re: [Alberg30] Sealand holding tank model number?
Date: Mon, 2 Jul 2001 23:02:48 -0700

I question if Kracor tank model #5022 will really fit under the port berth
as advertised.  From reviewing Kracor web sight and comparing those to
measurements I obtained from Tanagroa (#445), I doubt if the vertical height
of 18" plus the additional height needed for the fittings will fit..
However judging from information available on their web sight, I believe
that the Kracor mold # 5057 (Model 2-72815P) will do the trick.  It is
listed as 15.5 gal, however the only problem seems to be that the
intake/discharge fittings are located on the plane which measures 16'' x 22.
To fit in properly they need to placed on the plane measuring 12.5" x 22",
however this configuration is not offered.  When I called their Milwaukee
headquarters this afternoon, I was told I could get a "blank" (no fittings)
version of this tank and have the fittings installed myself.   The person I
spoke is going to check to see if they  sell necessary fittings etc for the
do-it yourselfers.  She promised to call me back  The price quoted for the
5057 was $367.00 (Ouch!)

Sealand offers a 15 gallon tank of identical dimensions (Product # 401500 /
Model 4015) as mention above.  From their web site drawings it appears that
the intake/with fittings are mounted one over the other on the ends.  It
appears, however,  that the inspection port is on the plane measuring 16" x
22."  I will be calling them tomorrow to see if they offer  custom placement
of fittings or "blanks" for do-it-yourself placement.   This tank is listed
in Defender's 2001 catalogue (page 71) as "Item 500349 " selling for
$167.79.

Chet Koop
Tangaroa 445
----- Original Message -----
From: "George Dinwiddie" <gdinwiddie at min.net>
To: <public-list at alberg30.org>
Sent: Monday, July 02, 2001 2:35 PM
Subject: Re: [Alberg30] Sealand holding tank model number?


 > You might want to consider the Kracor mold #5022, 15 gallons, which
 > also fits under the port v-berth (replacing the drawer).  As for
 > Practical Sailor, I consider their recommendations, like those of
 > Consumer Reports, a bit myopic.  They often focus on one aspect of
 > a product to the exclusion of others.  And sometimes their tests
 > are not repeatable.  Your mileage may vary, but I haven't heard
 > any complaints about the Kracor tanks.
 >
 >  - George [still using the old Mansfield TDX type 1]
 >
 > > Randy Katz said:
 > >
 > > Greetings--
 > >     Does anyone know the model no. of a Sealand tank that would fit in
The
 > > Boat?  I'm hoping for around 15 gal. to be on the receiving end of the
 > > Raritan  PHII I'm putting in.
 > >     Practical Sailor rec's Sealand tanks and that's what I'm
investigating.
 >
 > --
 >  ----------------------------------------------------------------------
 >   George Dinwiddie                             gdinwiddie at alberg30.org
 >   The gods do not deduct from man's allotted span those hours spent in
 >   sailing.                                    http://www.Alberg30.org/
 >  ----------------------------------------------------------------------
 >
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