| Aluminum black tank [message #280903] |
Sun, 28 June 2015 10:44  |
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wally
Messages: 643
Registered: August 2004
Location: Omaha Nebraska
Karma: 5
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I'm considering making an aluminum black tank. It seems the boat guys sometimes have short life with them but it seems to be more of a salt water flush problem. The rest of the aluminum on the coach has lasted great. Any thoughts?
Wally Anderson
Omaha NE
75 Glenbrook
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| Re: [GMCnet] Aluminum black tank [message #280909 is a reply to message #280905] |
Sun, 28 June 2015 12:24  |
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wally
Messages: 643
Registered: August 2004
Location: Omaha Nebraska
Karma: 5
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James Hupy wrote on Sun, 28 June 2015 11:08Let's see urine has a high saline content, and poo? Might be corrosive as
well, depending upon your diet I suspect. Original plastic tanks, properly
installed, have lasted for nearly 40 years. You going to need one longer
than that? Just asking.
Jim Hupy
Salem, OR
78 GMC Royale 403
On Sun, Jun 28, 2015 at 8:44 AM, Wally Anderson
wrote:
> I'm considering making an aluminum black tank. It seems the boat guys
> sometimes have short life with them but it seems to be more of a salt water
> flush problem. The rest of the aluminum on the coach has lasted great. Any
> thoughts?
> --
> Wally Anderson
> 1975 Glenbrook
> Megasquirt 455 port injection science project
> Omaha Nebraska
> Greater Midwest Classics
> GMCES
> http://wallyandsue.blogspot.com/
> _______________________________________________
> GMCnet mailing list
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Well I was thinking to make it a little more capacity as long it was happening. 1 3/8" deeper would make 10 gallons more so it would match the fresh supply closer. Some of the bus conversion guys are using aluminum fuel tanks as black tanks and seem OK with it. There was a GMC with an alum black tank in the description for sale awhile back. Cost compared to a new plastic tank is about the same. Just wondering if is a real bad idea.
Wally Anderson
Omaha NE
75 Glenbrook
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| Re: Aluminum black tank [message #280913 is a reply to message #280903] |
Sun, 28 June 2015 13:21 |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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Wally,
I have seen a very nice plywood/west coast epoxy black tank at international rally. I think the metal one would be problematic on thibgs sticking, it would get hot and cook things inside. I think the inside being a good smooth plastic or epoxy is key.
Whatever you do, if you figure out how to make a good high capicity tank, make two. I want to figure out a high capacity tank, But mine is only a year old.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: Aluminum black tank [message #280915 is a reply to message #280913] |
Sun, 28 June 2015 13:27 |
bpimm
Messages: 211
Registered: June 2013
Location: Washougal Washington
Karma: 2
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lqqkatjon wrote on Sun, 28 June 2015 11:21Wally,
I have seen a very nice plywood/west coast epoxy black tank at international rally. I think the metal one would be problematic on thibgs sticking, it would get hot and cook things inside. I think the inside being a good smooth plastic or epoxy is key.
Whatever you do, if you figure out how to make a good high capicity tank, make two. I want to figure out a high capacity tank, But mine is only a year old.
Do you know who the owner of the ply/west tank was. That is the route I'm thinking of going and would like to talk to someone that has done it.
Brian & RaeDean
1973 26' #383
Washougal WA
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| Re: Aluminum black tank [message #280924 is a reply to message #280903] |
Sun, 28 June 2015 15:52 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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I figure when my black tank dies (installed by Norris, I expect it's a 'standard' size) beyond the ability of me and the nasty black epoxy which has held fine so far, I'll take some thin stainless over to my welder bud's shop and see if I can't bend one up on his press brake or his hand brake. Then he can weld it around the seams and add flanges as necessary. I haven't had a lot of success bending 90s in aluminum.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Aluminum black tank [message #280925 is a reply to message #280923] |
Sun, 28 June 2015 15:52 |
Hal StClair
Messages: 971
Registered: March 2013
Location: Rio Rancho NM
Karma: -12
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I have a friend that built his tanks from ABS sheet. He took an element from an old oven, used a rheostat to control the temps and bent the material. He made all his holding tanks this way over 20 years ago and has had no problem with leaks, ever. Just another method to have custom tanks.
Hal
"I enjoy talking to you. Your mind appeals to me. It resembles my own mind, except you happen to be insane."
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
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| Re: Aluminum black tank [message #280930 is a reply to message #280915] |
Sun, 28 June 2015 17:02 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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bpimm wrote on Sun, 28 June 2015 13:27...Do you know who the owner of the ply/west tank was. That is the route I'm thinking of going and would like to talk to someone that has done it.
It was Dale Roop that made the plywood and fiberglas using the West System. He put a heater in it and made the tank larger.
Being an aluminum guy, I'd probably go that route.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: Aluminum black tank [message #281054 is a reply to message #281043] |
Tue, 30 June 2015 07:44 |
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wally
Messages: 643
Registered: August 2004
Location: Omaha Nebraska
Karma: 5
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Senior Member |
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hal kading wrote on Mon, 29 June 2015 22:11Wally,
My Buskirk Stretch had an aluminum grey water tank. It was relatively heavy guage materiel and still had many pin holes in a short time. I replaced it with stainless. The black tank and fresh water tanks were already stainless.
Hal Kading 78 Buskirk Las Cruces NM
Thanks Hal, dang it anyway
Wally Anderson
Omaha NE
75 Glenbrook
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