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Re: Physics/hydraulics of water and barrel
In article <30jsckF3182ubU1@uni-berlin.de>,
"Ray Drouillard" <cosmicpam2@comcast.net> wrote: > you will want to have a valve to keep the water from running out through the pump and > back into the barrel that's in the truck. > Ray Drouillard Same for the top fill hole hose? Won't want to run backwards? I'm gonna use the top fill hole anyway so I don't have to disconnect the drain hose from the cabin. I lost the physics argument, but I had the right idea. -- Member AAAAAAAA American Association Against Acronym Abuse And Also Ambiguity. ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
Re: Physics/hydraulics of water and barrel
Jeepers wrote:
> > In article <30jsckF3182ubU1@uni-berlin.de>, > "Ray Drouillard" <cosmicpam2@comcast.net> wrote: > > > you will want to have a valve to keep the water from running out through the pump and > > back into the barrel that's in the truck. > > Ray Drouillard > > Same for the top fill hole hose? Won't want to run backwards? > > I'm gonna use the top fill hole anyway so I don't have to disconnect the > drain hose from the cabin. > > I lost the physics argument, but I had the right idea. > No way you lost the physics argument! You asked which is easier? This means less 'work'. If you had a real reservoir there and had 'say' for easy numbers 100 psi coming out the bottom pipe, then you 'first' have to build up 100 psi in the pump before the water will start to run back up that line. This takes power or 'work'. If you have an empty line with no pressure in it the pump only has to hold the pressure of the water column in the pipe when filling from the top. Yes if the tank was a void, then it would be lees 'work' to raise the water only to the bottom of the tank, but as soon as the tank has water in it, it is fighting back and the physics radically change! So if you have a pump that can only generate 'say' 50 psi, then your truck tank will fill up at a rate of 50 psi out of that 'say' 100 psi line if there is no backflow valve. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's |
Re: Physics/hydraulics of water and barrel
Jeepers wrote:
> > In article <30jsckF3182ubU1@uni-berlin.de>, > "Ray Drouillard" <cosmicpam2@comcast.net> wrote: > > > you will want to have a valve to keep the water from running out through the pump and > > back into the barrel that's in the truck. > > Ray Drouillard > > Same for the top fill hole hose? Won't want to run backwards? > > I'm gonna use the top fill hole anyway so I don't have to disconnect the > drain hose from the cabin. > > I lost the physics argument, but I had the right idea. > No way you lost the physics argument! You asked which is easier? This means less 'work'. If you had a real reservoir there and had 'say' for easy numbers 100 psi coming out the bottom pipe, then you 'first' have to build up 100 psi in the pump before the water will start to run back up that line. This takes power or 'work'. If you have an empty line with no pressure in it the pump only has to hold the pressure of the water column in the pipe when filling from the top. Yes if the tank was a void, then it would be lees 'work' to raise the water only to the bottom of the tank, but as soon as the tank has water in it, it is fighting back and the physics radically change! So if you have a pump that can only generate 'say' 50 psi, then your truck tank will fill up at a rate of 50 psi out of that 'say' 100 psi line if there is no backflow valve. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's |
Re: Physics/hydraulics of water and barrel
Jeepers wrote:
> > In article <30jsckF3182ubU1@uni-berlin.de>, > "Ray Drouillard" <cosmicpam2@comcast.net> wrote: > > > you will want to have a valve to keep the water from running out through the pump and > > back into the barrel that's in the truck. > > Ray Drouillard > > Same for the top fill hole hose? Won't want to run backwards? > > I'm gonna use the top fill hole anyway so I don't have to disconnect the > drain hose from the cabin. > > I lost the physics argument, but I had the right idea. > No way you lost the physics argument! You asked which is easier? This means less 'work'. If you had a real reservoir there and had 'say' for easy numbers 100 psi coming out the bottom pipe, then you 'first' have to build up 100 psi in the pump before the water will start to run back up that line. This takes power or 'work'. If you have an empty line with no pressure in it the pump only has to hold the pressure of the water column in the pipe when filling from the top. Yes if the tank was a void, then it would be lees 'work' to raise the water only to the bottom of the tank, but as soon as the tank has water in it, it is fighting back and the physics radically change! So if you have a pump that can only generate 'say' 50 psi, then your truck tank will fill up at a rate of 50 psi out of that 'say' 100 psi line if there is no backflow valve. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's |
Re: Physics/hydraulics of water and barrel
In article <41A4C55B.4F42B023@sympatico.ca>,
Mike Romain <romainm@sympatico.ca> wrote: > No way you lost the physics argument! > > You asked which is easier? This means less 'work'. > > If you had a real reservoir there and had 'say' for easy numbers 100 psi > coming out the bottom pipe, then you 'first' have to build up 100 psi in > the pump before the water will start to run back up that line. This > takes power or 'work'. > > If you have an empty line with no pressure in it the pump only has to > hold the pressure of the water column in the pipe when filling from the > top. > > Yes if the tank was a void, then it would be lees 'work' to raise the > water only to the bottom of the tank, but as soon as the tank has water > in it, it is fighting back and the physics radically change! > > So if you have a pump that can only generate 'say' 50 psi, then your > truck tank will fill up at a rate of 50 psi out of that 'say' 100 psi > line if there is no backflow valve. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's Oh, great, now you've done it Ollie, I'm back to "confused". -- Member AAAAAAAA American Association Against Acronym Abuse And Also Ambiguity. ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
Re: Physics/hydraulics of water and barrel
In article <41A4C55B.4F42B023@sympatico.ca>,
Mike Romain <romainm@sympatico.ca> wrote: > No way you lost the physics argument! > > You asked which is easier? This means less 'work'. > > If you had a real reservoir there and had 'say' for easy numbers 100 psi > coming out the bottom pipe, then you 'first' have to build up 100 psi in > the pump before the water will start to run back up that line. This > takes power or 'work'. > > If you have an empty line with no pressure in it the pump only has to > hold the pressure of the water column in the pipe when filling from the > top. > > Yes if the tank was a void, then it would be lees 'work' to raise the > water only to the bottom of the tank, but as soon as the tank has water > in it, it is fighting back and the physics radically change! > > So if you have a pump that can only generate 'say' 50 psi, then your > truck tank will fill up at a rate of 50 psi out of that 'say' 100 psi > line if there is no backflow valve. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's Oh, great, now you've done it Ollie, I'm back to "confused". -- Member AAAAAAAA American Association Against Acronym Abuse And Also Ambiguity. ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
Re: Physics/hydraulics of water and barrel
In article <41A4C55B.4F42B023@sympatico.ca>,
Mike Romain <romainm@sympatico.ca> wrote: > No way you lost the physics argument! > > You asked which is easier? This means less 'work'. > > If you had a real reservoir there and had 'say' for easy numbers 100 psi > coming out the bottom pipe, then you 'first' have to build up 100 psi in > the pump before the water will start to run back up that line. This > takes power or 'work'. > > If you have an empty line with no pressure in it the pump only has to > hold the pressure of the water column in the pipe when filling from the > top. > > Yes if the tank was a void, then it would be lees 'work' to raise the > water only to the bottom of the tank, but as soon as the tank has water > in it, it is fighting back and the physics radically change! > > So if you have a pump that can only generate 'say' 50 psi, then your > truck tank will fill up at a rate of 50 psi out of that 'say' 100 psi > line if there is no backflow valve. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's Oh, great, now you've done it Ollie, I'm back to "confused". -- Member AAAAAAAA American Association Against Acronym Abuse And Also Ambiguity. ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
Re: Physics/hydraulics of water and barrel
> > You asked which is easier? This means less 'work'. > > If you had a real reservoir there and had 'say' for easy numbers 100 psi > coming out the bottom pipe, then you 'first' have to build up 100 psi in Dude, you're babbling. |
Re: Physics/hydraulics of water and barrel
> > You asked which is easier? This means less 'work'. > > If you had a real reservoir there and had 'say' for easy numbers 100 psi > coming out the bottom pipe, then you 'first' have to build up 100 psi in Dude, you're babbling. |
Re: Physics/hydraulics of water and barrel
> > You asked which is easier? This means less 'work'. > > If you had a real reservoir there and had 'say' for easy numbers 100 psi > coming out the bottom pipe, then you 'first' have to build up 100 psi in Dude, you're babbling. |
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