Author Topic: Custom Holding Tanks  (Read 6985 times)

Offline Ed Hackenbruch

  • Hero Member
  • *****
  • Posts: 2984
Re: Custom Holding Tanks
« Reply #45 on: May 21, 2020, 09:38:46 AM »
Ned, shhhh....:)    Jim, hadn't thought of that. Would yank the gauge though, would probably quit working and never needed one anyway.
Used to own a 1968 MCI 5A and a 1977 5C.

Offline Van

  • Hero Member
  • *****
  • Posts: 3257
Re: Custom Holding Tanks
« Reply #46 on: May 21, 2020, 04:11:54 PM »
Hmmm......wonder how i missed that one! :)

 Yeah I remember that incident, lol guess who owns that coach now? ;D
B&B CoachWorks
Bus Shop Mafia.

Offline niles500

  • Niles500
  • Hero Member
  • *****
  • Posts: 1384
  • ROSIE
Re: Custom Holding Tanks
« Reply #47 on: May 21, 2020, 08:30:48 PM »
That was Ace over 15 years ago, I believe there never was any problem with his tanks
(\__/)
(='.'=)
(")_(")  

- Niles

Offline buswarrior

  • Hero Member
  • *****
  • Posts: 6568
  • the old one: '75 MC8 with an 8V71 HT740
Re: Custom Holding Tanks
« Reply #48 on: May 21, 2020, 09:11:41 PM »
Jim, what, theoretically speaking, will the constituent components of urine do to aluminum or stainless?

And here we go!!!

Happy coaching!
Buswarrior
Frozen North, Greater Toronto Area
new project: 1995 MCI 102D3, Cat 3176b, Eaton Autoshift

Offline chessie4905

  • Hero Member
  • *****
  • Posts: 7101
Re: Custom Holding Tanks
« Reply #49 on: May 22, 2020, 03:39:36 AM »
Our 4104 had aluminum tanks when built by the converter. The holding tank needed to be replaced due to corrosion leakage after about 10 years. We replaced with hand built plastic from sheet stock and plastic welder.
GMC h8h 649#028 (4905)
Pennsylvania-central

Offline TomC

  • Hero Member
  • *****
  • Posts: 9255
Re: Custom Holding Tanks
« Reply #50 on: May 22, 2020, 08:53:14 AM »
You can't hardly compare the life of a plastic sprayer tank that is subjected to the sun and harsh chemicals to the hidden from light tanks on a bus. In the 26 years I've had my tanks (made by https://ronco-plastics.com/product-category/boat-tanks/ ) no problems at all. Ronco makes the tanks for Ardemco. Good Luck, TomC
Tom & Donna Christman. 1985 Kenworth 40ft Super C with garage. '77 AMGeneral 10240B; 8V-71TATAIC V730.

Offline Jim Blackwood

  • Call me Doc, or call me arsehole, just don't call me late to dinner.
  • Hero Member
  • *****
  • Posts: 2277
  • I'm 25% Farnsworth ;-)> 1996-MCI 102DL3
Re: Custom Holding Tanks
« Reply #51 on: May 22, 2020, 09:32:54 AM »
Aluminum would be a problem of course. That might not be obvious to everyone. Once when I was a kid I had a nice aluminum hair comb I was really proud of. Put it in a glass of ammonia one night to clean it and the next morning it had no teeth! so there you have it. Don't use aluminum for the black water tank. Any base will eat it. It holds up pretty well to acids though. Over time detergents might attack it too since they are essentially a base buffered with a hydrocarbon.

The stainless... I'm not so sure. It's pretty impervious stuff overall so it probably depends mostly on the specific composition. I can't really see ammonia attacking nickel or chromium but you have a fair amount of iron in there too so over time the cheaper grades may pit. So just make sure it is a good grade of stainless and I suspect it will be OK. The more nickel and chromium in it the better basically.

Jim
I saw it on the Internet. It MUST be true...

Offline luvrbus

  • Hero Member
  • *****
  • Posts: 26049
Re: Custom Holding Tanks
« Reply #52 on: May 22, 2020, 01:58:29 PM »
That was Ace over 15 years ago, I believe there never was any problem with his tanks


Must have been a problem those tanks are not in that bus now ,for the capacity round tanks take to much space compered to a custom tank

Life is short drink the good wine first

Offline Dave5Cs

  • Hero Member
  • *****
  • Posts: 4667
  • BCM Subscriber
Re: Custom Holding Tanks
« Reply #53 on: May 22, 2020, 02:53:17 PM »
No stainless for our water tanks. They leach Nickle because as Jim said above they have it in it. For people with Nickle allergies ( Like my wife) she has to stay away form it. Highly allergic to it.
"Perfect Frequency"1979 MCI MC5Cs 6V-71,644MT Allison.
2001 Jeep Cherokee Sport 60th Anniversary edition.
1998 Jeep TJ ,(Gone)
 Somewhere in the USA fulltiming.

Offline luvrbus

  • Hero Member
  • *****
  • Posts: 26049
Re: Custom Holding Tanks
« Reply #54 on: May 22, 2020, 04:16:01 PM »
No stainless for our water tanks. They leach Nickle because as Jim said above they have it in it. For people with Nickle allergies ( Like my wife) she has to stay away form it. Highly allergic to it.



Rico told me in Switzerland where he lives all fresh water piping is done with Stainless Steel in commercial building and residential homes no plastic or copper allowed,I won't drink from anything made Vinyl Chloride  (PVC).when I worked for Tenneco in the 60's I saw what that was made of 
Life is short drink the good wine first

Offline Jim Blackwood

  • Call me Doc, or call me arsehole, just don't call me late to dinner.
  • Hero Member
  • *****
  • Posts: 2277
  • I'm 25% Farnsworth ;-)> 1996-MCI 102DL3
Re: Custom Holding Tanks
« Reply #55 on: May 22, 2020, 04:22:49 PM »
Also, if you are talking about fresh water tanks (you are, right?) aluminum is once again, maybe not the best choice. Medical opinions may have changed, but about 30 years ago the medical industry was making links between aluminum in the body and Alzheimer's disease. Because aluminum is  a very reactive metal, avoiding taking it in via food or drink is probably a good idea. If you buy into that anyway. As likely as Nickel alergies I suppose so that's at least a possibility.

Regrettably the truly safe options for fresh water are few. Plastics as a class of materials have a nasty tendency towards something called "outgassing" in which they leach plasticizers. And since they are hydrocarbons there's a wide range of elements which can potentially have varying levels of toxicity. So although we like to think of plastics as safe, really it's more a point in the spectrum somewhere between safe and unsafe. Water bottles for instance can have up to 5 layers of plastics, the inner of which is usually PET, a relatively innocuous type.

Copper, aside from being a bit reactive can form oxides that are toxic.

Overall, steel is safer, or iron at least but it does rust. Maybe hardwood tanks would be the best for fresh water? Of course they can exude tannins but those don't tend to be particularly harmful. Maybe check with the water company and ask what they use?

Fresh and waste water tanks are very different things.

Jim
I saw it on the Internet. It MUST be true...

Offline Jim Blackwood

  • Call me Doc, or call me arsehole, just don't call me late to dinner.
  • Hero Member
  • *****
  • Posts: 2277
  • I'm 25% Farnsworth ;-)> 1996-MCI 102DL3
Re: Custom Holding Tanks
« Reply #56 on: May 22, 2020, 04:36:45 PM »
Another thing about the stainless. There do exist forms of stainless which contain very little or no nickel, Those are the chromium alloys.

Jim
I saw it on the Internet. It MUST be true...

Offline Ed Hackenbruch

  • Hero Member
  • *****
  • Posts: 2984
Re: Custom Holding Tanks
« Reply #57 on: May 22, 2020, 08:54:07 PM »
Just gold plate the inside.  :)
Used to own a 1968 MCI 5A and a 1977 5C.

Offline windtrader

  • Hero Member
  • *****
  • Posts: 2429
Re: Custom Holding Tanks
« Reply #58 on: May 22, 2020, 08:54:26 PM »
blah blah - just drink from a gallon plastic jug of store water. wash using the storage tanks. done
Don F
1976 MCI/TMC MC-8 #1286
Fully converted
Bought 2017

Offline sledhead

  • Hero Member
  • *****
  • Posts: 1509
Re: Custom Holding Tanks
« Reply #59 on: May 23, 2020, 04:28:51 AM »
I run all my drinking water through a R O system plus a U V light and the water has not killed me yet ?

dave
dave , karen
1990 mci 102c  6v92 ta ht740  kit,living room slide .... sold
2000 featherlite vogue vantare 550 hp 3406e  cat
1875 lbs torque  home base huntsville ontario canada

 

SimplePortal 2.3.7 © 2008-2024, SimplePortal