Ping Peggie
Question in the Island Packet group about aluminum and OdorLos.
Answer? Nice meeting you at SSCA! - the addy I had for you has bounced so I sent here - please cc me on a response or drop a note directly... Thanks. L8R Skip Morgan 461 #2 SV Flying Pig KI4MPC See our galleries at www.justpickone.org/skip/gallery ! Follow us at http://groups.google.com/group/flyingpiglog and/or http://groups.yahoo.com/group/TheFlyingPigLog "You are never given a wish without also being given the power to make it come true. You may have to work for it however." (and) "There is no such thing as a problem without a gift for you in its hands. You seek problems because you need their gifts." (Richard Bach, in The Reluctant Messiah) ----- Original Message ----- From: Molt, James To: islandpacket Sent: Thursday, October 11, 2007 11:19 AM Subject: [islandpacket] SURVEY IP350-145 Commissioned August 2003.-All tanks original. We flush with fresh (filtered) water and pump out after every sail (usually weekenders with 4 people). We do use ODORLOS and am wondering if anyone has any insight as to its effect on the aluminum tanks. Jim & Judy Molt QUAICH IP350-145 |
Ping Peggie
Skip Gundlach wrote:
Question in the Island Packet group about aluminum and OdorLos. Answer? Odorlos won't harm an aluminum holding tank...but urine will destroy it. That's been a known fact long enough that I'm very surprised that IP still using aluminum holding tanks. Nice meeting you at SSCA! - the addy I had for you has bounced so I sent here - please cc me on a response or drop a note directly... Nice to finally meet you too! -- Peggie ---------- Peggie Hall Specializing in marine sanitation since 1987 Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and Other Sources of Aggravation and Odor" http://shop.sailboatowners.com/boat_odors/ ----- Original Message ----- From: Molt, James To: islandpacket Sent: Thursday, October 11, 2007 11:19 AM Subject: [islandpacket] SURVEY IP350-145 Commissioned August 2003.-All tanks original. We flush with fresh (filtered) water and pump out after every sail (usually weekenders with 4 people). We do use ODORLOS and am wondering if anyone has any insight as to its effect on the aluminum tanks. Jim & Judy Molt QUAICH IP350-145 |
Ping Peggie
Did I read that correctly...urine will destroy an aluminum holding tank?
Bummer...my Father just had one made for his trawler. Any way to prevent this? Glenn. "Peggie Hall" wrote in message ... Skip Gundlach wrote: Question in the Island Packet group about aluminum and OdorLos. Answer? Odorlos won't harm an aluminum holding tank...but urine will destroy it. That's been a known fact long enough that I'm very surprised that IP still using aluminum holding tanks. Nice meeting you at SSCA! - the addy I had for you has bounced so I sent here - please cc me on a response or drop a note directly... Nice to finally meet you too! -- Peggie ---------- Peggie Hall Specializing in marine sanitation since 1987 Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and Other Sources of Aggravation and Odor" http://shop.sailboatowners.com/boat_odors/ ----- Original Message ----- From: Molt, James To: islandpacket Sent: Thursday, October 11, 2007 11:19 AM Subject: [islandpacket] SURVEY IP350-145 Commissioned August 2003.-All tanks original. We flush with fresh (filtered) water and pump out after every sail (usually weekenders with 4 people). We do use ODORLOS and am wondering if anyone has any insight as to its effect on the aluminum tanks. Jim & Judy Molt QUAICH IP350-145 |
Ping Peggie
Glenn (s/v Seawing) wrote:
Did I read that correctly...urine will destroy an aluminum holding tank? Yep. It'll destroy ANY metal holding tank, even 316 stainless. Bummer...my Father just had one made for his trawler. Any way to prevent this? Nope. But it's not gonna suddenly disintegrate. The average lifespan of any metal waste tank is about 10 years. Typically, it'll start to leak at a weld in seam or fitting within about 2 years...and turn into a colander in about 10 years. So you might want to tell him not to panic...it'll be ok for the next few years. Just keep an eye--and his nose--on it. And tell him not to bother repairing the first leak...'cuz the first one is always ONLY the FIRST one. The time to replace it with a good quality thick walled plastic tank is after it springs te first leak. Till then, he can relax. -- Peggie ---------- Peggie Hall Specializing in marine sanitation since 1987 Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and Other Sources of Aggravation and Odor" http://shop.sailboatowners.com/boat_odors/ |
Ping Peggie
Peggie Hall wrote:
Glenn (s/v Seawing) wrote: Did I read that correctly...urine will destroy an aluminum holding tank? Yep. It'll destroy ANY metal holding tank, even 316 stainless. Bummer...my Father just had one made for his trawler. Any way to prevent this? Nope. But it's not gonna suddenly disintegrate. The average lifespan of any metal waste tank is about 10 years. Typically, it'll start to leak at a weld in seam or fitting within about 2 years...and turn into a colander in about 10 years. So you might want to tell him not to panic...it'll be ok for the next few years. Just keep an eye--and his nose--on it. And tell him not to bother repairing the first leak...'cuz the first one is always ONLY the FIRST one. The time to replace it with a good quality thick walled plastic tank is after it springs te first leak. Till then, he can relax. Any chance coating the inside with an epoxy coating will help extend the lifespan? In commercial ships black water tanks ARE often built into the hull of the ship as integral steel tanks. Though I'm not fond of the practice myself, sometimes the tanks are 2000 - 3000L and plastic tanks of that size are a bit bulky to fit into an engine room... Evan Gatehouse |
Ping Peggie
Hey Peggie, speaking of holding tanks I have a question for you. I have
been using CP & KO with good luck as it is holding down the smells from the bowl to the tank. But the one stink I haven't attacked yet is from the intake raw water hose. When the head is flushed wet the raw water coming in is really strong stinky. Just wondered what solution you have for this. (If you've already covered this in a previous post just guide me to it and I'll read it there, thanks) Also I just spotted a little device in a store, the name of which escapes me at the moment, that attaches to the intake line just inside of the seacock that utilizes some type of replaceable deoderizing tablet that treats the head's intake water to kill the smell before it reaches the bowl. While it looks like just the thing for this problem, I wonder if you have any experience with that sort of thing and what your thoughts on it are (I noticed that on the bottles of KO and CP that it says not to use anything chemical with it). Thanks, Red |
Ping Peggie
Somebody wrote:
Did I read that correctly...urine will destroy an aluminum holding tank? Yep. It'll destroy ANY metal holding tank, even 316 stainless. That's why "tank resin" exists. Lew |
Ping Peggie
Lew Hodgett wrote:
Somebody wrote: Did I read that correctly...urine will destroy an aluminum holding tank? Yep. It'll destroy ANY metal holding tank, even 316 stainless. That's why "tank resin" exists. Metal tank mfrs have have been coating holding tanks with all kinds of things...epoxy, resin... To date there has been nothing that will extend the life of a metal holding more than a year or two...if that long. -- Peggie ---------- Peggie Hall Specializing in marine sanitation since 1987 Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and Other Sources of Aggravation and Odor" http://shop.sailboatowners.com/boat_odors/ |
Ping Peggie
"Peggie Hall" wrote: Metal tank mfrs have have been coating holding tanks with all kinds of things...epoxy, resin... To date there has been nothing that will extend the life of a metal holding more than a year or two...if that long. Guess my customers, the heavy chemical industry, are unaware of this limitation. Lew |
Ping Peggie
On Sat, 27 Oct 2007 01:23:38 GMT, Peggie Hall
wrote: Did I read that correctly...urine will destroy an aluminum holding tank? Yep. It'll destroy ANY metal holding tank, even 316 stainless. That's why "tank resin" exists. Metal tank mfrs have have been coating holding tanks with all kinds of things...epoxy, resin... To date there has been nothing that will extend the life of a metal holding more than a year or two...if that long. I have a thought. It's off the top, but it's worth testing. Any acidic solution tends to eat metal. Water doesn't even need to be acidic to promote pin hole corrosion in some aluminum alloys. Oxygen depleted water is hell on stainless. But alkaline solutions, in general, don't eat metal so well, or at all. I have this hunch that waste water rendered slightly high pH of neutral would help a tank to survive. Do you have any stories on this topic? Brian Whatcott Altus OK |
Ping Peggie
Brian Whatcott wrote:
I have a thought. It's off the top, but it's worth testing. Any acidic solution tends to eat metal. Not necessarily. Vinegar is acid, but doesn't harm metal...chlorine isn't acid, but is corrosive and does destroy metal. Water doesn't even need to be acidic to promote pin hole corrosion in some aluminum alloys. Oxygen depleted water is hell on stainless. But alkaline solutions, in general, don't eat metal so well, or at all. Urine can be alkaline or acidic...doesn't seem to matter in a metal holding tank. I have this hunch that waste water rendered slightly high pH of neutral would help a tank to survive. Waste and water have about the same pH...7-9...so I don't THINK pH is the key...'cuz the same aluminum alloy tank used to hold water will last 20-25 years. I'm not a chemist, so I can't tell you why that's true, only that it has proven to be. -- Peggie ---------- Peggie Hall Specializing in marine sanitation since 1987 Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and Other Sources of Aggravation and Odor" http://shop.sailboatowners.com/boat_odors/ |
Ping Peggie
On Sat, 27 Oct 2007 10:02:59 -0500, Peggie Hall
wrote: Urine can be alkaline or acidic...doesn't seem to matter in a metal holding tank. Well who'da guessed! Dilute uric acid alkaline! I picked out the Corning pH meter, all set to put it to the test. But the 3 volt lithiums need changing. Oh well. I have this hunch that waste water rendered slightly high pH of neutral would help a tank to survive. Waste and water have about the same pH...7-9.. ?? Thanks for responding Brian W |
Ping Peggie
Bummer...I miss direct overboard discharge. :-(.
Glenn. "Peggie Hall" wrote in message ... Glenn (s/v Seawing) wrote: Did I read that correctly...urine will destroy an aluminum holding tank? Yep. It'll destroy ANY metal holding tank, even 316 stainless. Bummer...my Father just had one made for his trawler. Any way to prevent this? Nope. But it's not gonna suddenly disintegrate. The average lifespan of any metal waste tank is about 10 years. Typically, it'll start to leak at a weld in seam or fitting within about 2 years...and turn into a colander in about 10 years. So you might want to tell him not to panic...it'll be ok for the next few years. Just keep an eye--and his nose--on it. And tell him not to bother repairing the first leak...'cuz the first one is always ONLY the FIRST one. The time to replace it with a good quality thick walled plastic tank is after it springs te first leak. Till then, he can relax. -- Peggie ---------- Peggie Hall Specializing in marine sanitation since 1987 Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and Other Sources of Aggravation and Odor" http://shop.sailboatowners.com/boat_odors/ |
Ping Peggie
On Sat, 27 Oct 2007 23:17:06 GMT, Brian Whatcott
wrote: On Sat, 27 Oct 2007 10:02:59 -0500, Peggie Hall wrote: Urine can be alkaline or acidic...doesn't seem to matter in a metal holding tank. ..... I have this hunch that waste water rendered slightly high pH of neutral would help a tank to survive ..- Waste and water have about the same pH...7-9.. I finally bought the silver oxide cells for my Corning pH meter, and peed a sample to check - it read 5.5 pH - about where I expect. But...but..but: I seem to recall that waste mater can soon smell ammoniacal, and maybe THAT'S the alkaline component? Brian W |
Ping Peggie
"Brian Whatcott" wrote in message ... Waste and water have about the same pH...7-9.. I finally bought the silver oxide cells for my Corning pH meter, and peed a sample to check - it read 5.5 pH - about where I expect. But...but..but: I seem to recall that waste mater can soon smell ammoniacal, and maybe THAT'S the alkaline component? Peggie doesn't have that problem. Peggie's **** don't stink. (or at least she thinks that!) Did you hear the real reason why they didn't want to let more water out of Lake Lanier until recently? They said it was because of some endangered mussel but that was just smoke and mirrors. The real reason was because everything below a depth of about ten feet is toxic as hell. Too many people emptying their holding tanks full of chemicals that don't work. Greg |
Ping Peggie
On Sat, 17 Nov 2007 15:17:28 -0500, "Gregory Hall"
wrote: "Brian Whatcott" wrote in message .. . Waste and water have about the same pH...7-9.. I finally bought the silver oxide cells for my Corning pH meter, and peed a sample to check - it read 5.5 pH - about where I expect. But...but..but: I seem to recall that waste matter can soon smell ammoniacal, and maybe THAT'S the alkaline component? .... Did you hear the real reason why they didn't want to let more water out of Lake Lanier until recently?.... because everything below a depth of about ten feet is toxic as hell. Too many people emptying their holding tanks full of chemicals that don't work. Greg eeeiooow! Brian W |
Ping Peggie
I see that Neal, aka Wilbur, has assumed yet another identity.
Gregory Hall wrote: Peggie doesn't have that problem. Peggie's **** don't stink. (or at least she thinks that!) Did you hear the real reason why they didn't want to let more water out of Lake Lanier until recently? They said it was because of some endangered mussel but that was just smoke and mirrors. The real reason was because everything below a depth of about ten feet is toxic as hell. Too many people emptying their holding tanks full of chemicals that don't work. Greg -- Peggie ---------- Peggie Hall Specializing in marine sanitation since 1987 Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and Other Sources of Aggravation and Odor" http://shop.sailboatowners.com/boat_odors/ |
Ping Peggie
On Sat, 17 Nov 2007 15:17:28 -0500, "Gregory Hall"
wrote: "Brian Whatcott" wrote in message .. . Waste and water have about the same pH...7-9.. I finally bought the silver oxide cells for my Corning pH meter, and peed a sample to check - it read 5.5 pH - about where I expect. But...but..but: I seem to recall that waste mater can soon smell ammoniacal, and maybe THAT'S the alkaline component? Peggie doesn't have that problem. Peggie's **** don't stink. (or at least she thinks that!) Did you hear the real reason why they didn't want to let more water out of Lake Lanier until recently? They said it was because of some endangered mussel but that was just smoke and mirrors. The real reason was because everything below a depth of about ten feet is toxic as hell. Too many people emptying their holding tanks full of chemicals that don't work. Greg Wilbur, is that you? Bruce-in-Bangkok (Note:remove underscores from address for reply) |
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