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#41
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Where is a "safe place" to dispose of 14 oz. propane tanks?
On Feb 25, 4:41�pm, mm wrote:
On Mon, 25 Feb 2008 11:38:43 -0500, Jeff Wisnia wrote: mm wrote: On Sun, 24 Feb 2008 17:00:40 -0500, Jeff Wisnia wrote: Actually I saw a device somewhere, a hose with connectors at the ends, that enables one to re"fill" it from the 20 pound tank. � I don't know if this is UL or otherwise approved, and I can't get my head around whether it would have as much propane inside as a new can would, or how much less. Harbor Freight sells 'em. I've had one for years and refill my Bernz-O-Matic style propane torch bottles from a grille tank using it. IIRC there was some note that came with it saying something about not taking refilled bottles across state lines. I'm careful not to "overfill" those bottles I weighed a "full" newly purchased one abd don't refill to any more weight than that. A) Could it fill more than that? If the pressure when new in the small tank is as much as the pressure in the large on when new (is it?), how could you fill the small one to any higher pressure (and weight)? If the large (grille) tank has been sitting outside in warm weather and you put the small tank in the kitchen freezer for a while before filling it, as mentioned in the instructions which came with the HF adaptor, then there WILL be a pressure difference, at least until the small tank gets as warm as the large tank. I'm not saying that I ever actually "overfilled" a small tank that way. I was just being curious and cautious and decided to weigh the refilled tanks to be on the safe side. I realize that the Schraeder valve would open and let gas vent out if the tank was totally filled with liquid and subjected to a temperature increase, but that's not something I want happening in my house. G B) Do you have that kind of control? � Obviously you think you do, but I'm surprised unless it fills slowly. �I thought there would be no orifices in the hose, just a full size opening. No small orifices, (and no hose either on the refiller I've got) but you can "crack" the large tank's valve to regulate the liquid flow. Jeff Thanks- Hide quoted text - - Show quoted text - hey ship all the used tanks to me, i will take them all for free, disable them and sell for scrap weekly. nice side income |
#42
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Where is a "safe place" to dispose of 14 oz. propane tanks?
on 2/24/2008 10:31 AM Robert Allison said the following:
willshak wrote: on 2/24/2008 8:52 AM Norminn said the following: mm wrote: Where is a "safe place" to dispose of small, 14 oz. propane tanks? The web is no help. I called our city about getting rid of propane tanks for gas grill. Our city has a lot of recycling programs, but don't take propane tanks. City said that Walmart and Lowes take empties. Perhaps they take your smaller ones as well. Or perhaps a welding shop knows what to do. Return them to a store that has one of those "Rhino" ( or other brand ) propane replacement cages outside. In my town, they have them at beer stores, supermarkets, and quick stop stores, among others. Get new approved OPD full tanks for your old tanks. What a great idea! You mean I can take my empty soldering torch bottles in and they will trade them for propane tanks for a grill? Sweet! Have you done this yourself? Sorry. I was drunk and missed the part about the 14 ounces. -- Bill In Hamptonburgh, NY To email, remove the double zeroes after @ |
#43
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Where is a "safe place" to dispose of 14 oz. propane tanks?
mm writes:
I'm careful not to "overfill" those bottles I weighed a "full" newly purchased one abd don't refill to any more weight than that. A) Could it fill more than that? If the pressure when new in the small tank is as much as the pressure in the large on when new (is it?), how could you fill the small one to any higher pressure (and weight)? A new propane tank is mostly full of liquid. As you draw propane gas off the top, some of the liquid boils to replenish the liquid, and the pressure in the top part of the tank is the vapour pressure of propane at the current temperature. Now, if you refill this at your local propane supplier, he'll use a pump that provides more pressure than the vapour pressure of propane. This is enough to re-liquefy the propane left in the tank, plus add a bunch more liquid propane. If the operator's not careful, an old-style propane tank can be filled 100% full of liquid, with no gas space. This is an explosion hazard, because any temperature rise will cause the safety valve to open or, if it fails, actually generate thousands of PSI and split the tank. The refill operator is *supposed* to weigh the tank on a scale and stop when the tank plus propane weight indicates that the tank still contains about 20% gas. The newer tanks with OPD valves actually have a little float that shuts off the liquid flow when the liquid level gets as high as the float. Now, when you're refilling a small tank from a large one, you don't have the mechanical pump, but you can still generate higher pressure in the large tank than the small one by a difference in temperature. And you can still fill the little tank 100% full of liquid under some circumstances. Dave |
#44
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Where is a "safe place" to dispose of 14 oz. propane tanks?
willshak wrote:
on 2/24/2008 10:31 AM Robert Allison said the following: willshak wrote: on 2/24/2008 8:52 AM Norminn said the following: mm wrote: Where is a "safe place" to dispose of small, 14 oz. propane tanks? The web is no help. I called our city about getting rid of propane tanks for gas grill. Our city has a lot of recycling programs, but don't take propane tanks. City said that Walmart and Lowes take empties. Perhaps they take your smaller ones as well. Or perhaps a welding shop knows what to do. Return them to a store that has one of those "Rhino" ( or other brand ) propane replacement cages outside. In my town, they have them at beer stores, supermarkets, and quick stop stores, among others. Get new approved OPD full tanks for your old tanks. What a great idea! You mean I can take my empty soldering torch bottles in and they will trade them for propane tanks for a grill? Sweet! Have you done this yourself? Sorry. I was drunk and missed the part about the 14 ounces. I know you did. I just like to point out errors with humor rather than venom. -- Robert Allison Rimshot, Inc. Georgetown, TX |
#45
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Where is a "safe place" to dispose of 14 oz. propane tanks?
On Mon, 25 Feb 2008 08:37:04 -0800 (PST), DerbyDad03
wrote: Remember - refilling devices don't kill people, people kill people. When refilling devices are outlawed, only outlaws will have refilling devices. |
#46
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Where is a "safe place" to dispose of 14 oz. propane tanks?
On Feb 25, 8:47*pm, mm wrote:
On Mon, 25 Feb 2008 08:37:04 -0800 (PST), DerbyDad03 wrote: Remember - refilling devices don't kill people, people kill people. When refilling devices are outlawed, only outlaws will have refilling devices. A little known fact about the Second Amendment - orginally it was penned as follows but then altered just prior to publication: A well regulated grill being necessary to the enjoyment of a cheaper vacation, the right of the people to keep and bear refilling devices shall not be infringed. |
#47
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Where is a "safe place" to dispose of 14 oz. propane tanks?
On Mon, 25 Feb 2008 20:05:18 -0800 (PST), DerbyDad03
wrote: On Feb 25, 8:47*pm, mm wrote: On Mon, 25 Feb 2008 08:37:04 -0800 (PST), DerbyDad03 wrote: Remember - refilling devices don't kill people, people kill people. When refilling devices are outlawed, only outlaws will have refilling devices. A little known fact about the Second Amendment - orginally it was penned as follows but then altered just prior to publication: A well regulated grill being necessary to the enjoyment of a cheaper vacation, the right of the people to keep and bear refilling devices shall not be infringed. Thanks. Now I understand that exhibit at the National Archives. |
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