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#1
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As I pointed out his solution, even if it did function, it would be
inadequate at best. Because you do not know, my tools and their use are my hobby and my hobby is expensive and yes, I do consider my time as a cost factor. There are only 1100 hours a year for the working individual available for activities outside of the work place and what time you spend on one thing restricts your available time for other things. How you expend those available hours is of course personal choice, but to consider them without cost is foolishness. To repeat myself again, your solution is neither cheap nor simple. Steve "Sjouke Burry" wrote in message ... Steve Lusardi wrote: $10 solution? I guess you don't build many things. How much is your time worth? How much effort do you think it will take you to source the apprpriate parts, even if you could? If you couldn't, do you have the tools to make them? Material cost? Then you have the performance, accuracy, liniarity, data display and verification issues to deal with. I have both the knowledge, the test equipment and the machine shop to do this and I know that for me to make one would cost me several kilobucks in time and materials. Perhaps you want to share what your smoking. Steve I would make the mecanical parts, and get a counter/photo transistor from www.conrad.com I dont have to pay myself, you apparently have never done any hobby work, according to your rules it would be impossible to make something on the cheap. The OP wanted something simple/cheap to have some indication of water consumption, and I dont see where you would spend all that money on, unless you are trying to solve a different problem. |
#2
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On Wed, 31 Dec 2008 10:55:34 +0100, "Steve Lusardi"
wrote: As I pointed out his solution, even if it did function, it would be inadequate at best. Because you do not know, my tools and their use are my hobby and my hobby is expensive and yes, I do consider my time as a cost factor. There are only 1100 hours a year for the working individual available for activities outside of the work place and what time you spend on one thing restricts your available time for other things. How you expend those available hours is of course personal choice, but to consider them without cost is foolishness. To repeat myself again, your solution is neither cheap nor simple. Steve I think you should hire somebody to breathe for you. It's a real time waster. |
#3
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On Mon, 29 Dec 2008 01:01:37 -0800 (PST), foggywaters
wrote: Hi I would like to install / build a meter that would display the amount of water I have taken from my water tank(s). There is no access to the tank(s), installing level senders would be difficult. I am aware of the WaterWatch. It would suffice but the literature says the minimum water flow required is ~ 1.6 Gallons Per Minute. I don't think it would record small demands i.e. brushing one's teeth. Although it would be good for measuring the amount of water added to the tanks. I would prefer a system with a small in-line sensor sending pulses? to a meter (LED ? LCD?) 10' away. Any suggestions foggywaters This sounds like it will not work but it does! Monitor your pump runtime from a full tank to an empty tank. I have installed a relay that energises when the pump is running, use that to run an hrs:min:secs counter. my tank gave 1hr 45min. Just reset the counter when you fill the tank to full. Look at the counter and a bit of arithmetic in your head will tell you your tank state. Simple way to control the counter is to wrap say 20 turns of the pump live feed around a reed switch use the reed to switch the hrs counter. This allows the switch and relay to be remote from the pump. Do not be concerned if you have an accumulator in the system, it all averages out nicely. Richard |
#4
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Richard Edwards wrote in
: On Mon, 29 Dec 2008 01:01:37 -0800 (PST), foggywaters wrote: Hi I would like to install / build a meter that would display the amount of water I have taken from my water tank(s). There is no access to the tank(s), installing level senders would be difficult. I am aware of the WaterWatch. It would suffice but the literature says the minimum water flow required is ~ 1.6 Gallons Per Minute. I don't think it would record small demands i.e. brushing one's teeth. Although it would be good for measuring the amount of water added to the tanks. I would prefer a system with a small in-line sensor sending pulses? to a meter (LED ? LCD?) 10' away. Any suggestions foggywaters This sounds like it will not work but it does! Monitor your pump runtime from a full tank to an empty tank. I have installed a relay that energises when the pump is running, use that to run an hrs:min:secs counter. my tank gave 1hr 45min. Just reset the counter when you fill the tank to full. Look at the counter and a bit of arithmetic in your head will tell you your tank state. Simple way to control the counter is to wrap say 20 turns of the pump live feed around a reed switch use the reed to switch the hrs counter. This allows the switch and relay to be remote from the pump. Do not be concerned if you have an accumulator in the system, it all averages out nicely. Richard Why don't you simply install guages on the tank(s)? -- Geoff www.GeoffSchultz.org |
#5
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On Wed, 31 Dec 2008 09:35:00 +0000, Richard Edwards
wrote in : This sounds like it will not work but it does! Monitor your pump runtime from a full tank to an empty tank. What it actually sounds like to me is a really bad idea, because a simple screwup can leave you thinking you have water in your tank that you don't really have, the consequences of which could range from unpleasant to life threatening. A flow meter has the same problem. A real water gauge should always be used. -- Very best wishes for the holiday season and for the coming new year, John |
#6
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On Dec 29 2008, 4:01*am, foggywaters wrote:
Hi I would like to install / build a meter that would display the amount of water I have taken from my water tank(s). There is no access to the tank(s), *installing level senders would be difficult. I am aware of the WaterWatch. It would suffice but the literature says the minimum water flow required is ~ 1.6 Gallons Per Minute. I don't think it would record small demands i.e. brushing one's teeth. Although it would be good for measuring the amount of water added to the tanks. I would prefer a system with a small in-line sensor sending pulses? to a meter (LED ? LCD?) 10' away. Any suggestions foggywaters Check out: https://www.freshwatersystems.com/support/8000t.pdf I think this is exactly what you want for under $40 |
#7
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On Jan 5, 5:45*am, Capt Dan wrote:
On Dec 29 2008, 4:01*am, foggywaters wrote: Hi I would like to install / build a meter that would display the amount of water I have taken from my water tank(s). There is no access to the tank(s), *installing level senders would be difficult. I am aware of the WaterWatch. It would suffice but the literature says the minimum water flow required is ~ 1.6 Gallons Per Minute. I don't think it would record small demands i.e. brushing one's teeth. Although it would be good for measuring the amount of water added to the tanks. I would prefer a system with a small in-line sensor sending pulses? to a meter (LED ? LCD?) 10' away. Any suggestions foggywaters Check out: https://www.freshwatersystems.com/support/8000t.pdf I think this is exactly what you want for under $40- Hide quoted text - - Show quoted text - Capt Dan Thanks - Yes this looks very good, I like it - but - the connections are only 3/8" NPT. My main line is 3/4" with the individuals 1/2". I will put a piece of 3/8" hose in line to see what affect it has on the volume of flow. foggy |
#8
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As stated before, a flow meter gives indirect answers to your question and
therefore is prone to error. I have another suggestion that I think is not only more practical, but less expensive. Use a "Differential Pressure Gage" calibrated in inches of H2O. All this takes is a small diameter hose to the tank bottom connected directly to the high side of the gauge and a method to burp the line from time to time. These gauges can be found both new and used at very freindly prices. Steve "foggywaters" wrote in message ... On Jan 5, 5:45 am, Capt Dan wrote: On Dec 29 2008, 4:01 am, foggywaters wrote: Hi I would like to install / build a meter that would display the amount of water I have taken from my water tank(s). There is no access to the tank(s), installing level senders would be difficult. I am aware of the WaterWatch. It would suffice but the literature says the minimum water flow required is ~ 1.6 Gallons Per Minute. I don't think it would record small demands i.e. brushing one's teeth. Although it would be good for measuring the amount of water added to the tanks. I would prefer a system with a small in-line sensor sending pulses? to a meter (LED ? LCD?) 10' away. Any suggestions foggywaters Check out: https://www.freshwatersystems.com/support/8000t.pdf I think this is exactly what you want for under $40- Hide quoted text - - Show quoted text - Capt Dan Thanks - Yes this looks very good, I like it - but - the connections are only 3/8" NPT. My main line is 3/4" with the individuals 1/2". I will put a piece of 3/8" hose in line to see what affect it has on the volume of flow. foggy |
#9
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Steve. Thanks. This sounds like the Tank Tender system: www.thetanktender.com
"Tank Tender operates on air pressure. Select the tank, then pump a small amount of air through tubing to the bottom of the tank. When the air pressure in the tube equals the liquid pressure at the bottom of the tank, the gauge displays this pressure in inches". They list at US$375. for a single tank system. Have to find a non- marine version. ?? www.grainger.com list several gages alone from US$65. - $300.There are some lised on ebay as well - It is an option but I only have access to a aft corner of one tank and the fwd on the other tank - (belly tanks 168 cm L x 43 cm w X 28 cm H). some people with the same boat have said they do not find the Tank Tender very accurate - not that we really need precision - probably because the tank is shallow and the tube is at the end.. foggy On Jan 18, 10:56*pm, "Steve Lusardi" wrote: As stated before, a flow meter gives indirect answers to your question and therefore is prone to error. I have another suggestion that I think is not only more practical, but less expensive. Use a "Differential Pressure Gage" calibrated in inches of H2O. All this takes is a small diameter hose to the tank bottom connected directly to the high side of the gauge and a method to burp the line from time to time. These gauges can be found both new and used at very freindly prices. Steve |
#10
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On Tue, 20 Jan 2009 00:06:36 -0800 (PST), foggywaters
wrote: Steve. Thanks. This sounds like the Tank Tender system: www.thetanktender.com "Tank Tender operates on air pressure. Select the tank, then pump a small amount of air through tubing to the bottom of the tank. When the air pressure in the tube equals the liquid pressure at the bottom of the tank, the gauge displays this pressure in inches". They list at US$375. for a single tank system. Have to find a non- marine version. ?? www.grainger.com list several gages alone from US$65. - $300.There are some lised on ebay as well - It is an option but I only have access to a aft corner of one tank and the fwd on the other tank - (belly tanks 168 cm L x 43 cm w X 28 cm H). some people with the same boat have said they do not find the Tank Tender very accurate - not that we really need precision - probably because the tank is shallow and the tube is at the end.. foggy The "air" gauges measure water depth in the tank so a shallow tank would be harder to get an accurate measurement in then a deep tank as an increment of measurement in a shallow tank is a much larger quantity then the same increment in a narrow tank.. But in any event they are more accurate then those "1/4 empty" float gauges :-) On Jan 18, 10:56Â*pm, "Steve Lusardi" wrote: As stated before, a flow meter gives indirect answers to your question and therefore is prone to error. I have another suggestion that I think is not only more practical, but less expensive. Use a "Differential Pressure Gage" calibrated in inches of H2O. All this takes is a small diameter hose to the tank bottom connected directly to the high side of the gauge and a method to burp the line from time to time. These gauges can be found both new and used at very freindly prices. Steve Cheers, Bruce (bruceinbangkokatgmaildotcom) |
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