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#1
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self powered pump/filter
During a break from digging my pond, and basking in the warm Queensland
sunshine it occured to me that I could use the hydraulic pressure of the pond to pump/siphon water into my veggie filter. So i built a model using a 20 liter drum and it's been pumping/siphoning away like a beauty for a week. I used a network of 12mm poly irrigation pipe in the bottom of the drum and initially primed/siphoned the outlet line into a plastic tub, about a metre head..with an overflow outlet back to the drum...topped up the level as it got pumping and voila!. A search of the web has rewarded me with no links to something similar..so now I'm beginning to worry that I am missing something obvious in my new found enthusiasm. As a result I now have a niggling doubt that this will all fail when scaled up. Anyone have a clue that might save me from a fundamental error when the real thing is needed? |
#2
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self powered pump/filter
"cruxaustralis" wrote in message ... During a break from digging my pond, and basking in the warm Queensland sunshine it occured to me that I could use the hydraulic pressure of the pond to pump/siphon water into my veggie filter. So i built a model using a 20 liter drum and it's been pumping/siphoning away like a beauty for a week. I used a network of 12mm poly irrigation pipe in the bottom of the drum and initially primed/siphoned the outlet line into a plastic tub, about a metre head..with an overflow outlet back to the drum...topped up the level as it got pumping and voila!. A search of the web has rewarded me with no links to something similar..so now I'm beginning to worry that I am missing something obvious in my new found enthusiasm. As a result I now have a niggling doubt that this will all fail when scaled up. Anyone have a clue that might save me from a fundamental error when the real thing is needed? Not possible, defies the laws of physics. |
#3
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"Lostin1999" wrote in message
... "Lane" lane_nospam@copperaccents_dot_com wrote in message ... "cruxaustralis" wrote in message ... During a break from digging my pond, and basking in the warm Queensland sunshine it occured to me that I could use the hydraulic pressure of the pond to pump/siphon water into my veggie filter. So i built a model using a 20 liter drum and it's been pumping/siphoning away like a beauty for a week. I used a network of 12mm poly irrigation pipe in the bottom of the drum and initially primed/siphoned the outlet line into a plastic tub, about a metre head..with an overflow outlet back to the drum...topped up the level as it got pumping and voila!. A search of the web has rewarded me with no links to something similar..so now I'm beginning to worry that I am missing something obvious in my new found enthusiasm. As a result I now have a niggling doubt that this will all fail when scaled up. Anyone have a clue that might save me from a fundamental error when the real thing is needed? Not possible, defies the laws of physics. so do bumble bees.... however I do agree this sounds odd, but hope to see some (however crude) diagrams of this.. Lost Perhaps heat is causing convection currents in the setup and the rising heated water is causing a flow. As there's no other obvious source of energy, I can't think of any other way you could have circulation. You did mention it's hot. Could this be it? Is the flow of water back warm? |
#4
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"Lostin1999" wrote in message
... "Lane" lane_nospam@copperaccents_dot_com wrote in message ... "cruxaustralis" wrote in message ... During a break from digging my pond, and basking in the warm Queensland sunshine it occured to me that I could use the hydraulic pressure of the pond to pump/siphon water into my veggie filter. So i built a model using a 20 liter drum and it's been pumping/siphoning away like a beauty for a week. I used a network of 12mm poly irrigation pipe in the bottom of the drum and initially primed/siphoned the outlet line into a plastic tub, about a metre head..with an overflow outlet back to the drum...topped up the level as it got pumping and voila!. A search of the web has rewarded me with no links to something similar..so now I'm beginning to worry that I am missing something obvious in my new found enthusiasm. As a result I now have a niggling doubt that this will all fail when scaled up. Anyone have a clue that might save me from a fundamental error when the real thing is needed? Not possible, defies the laws of physics. so do bumble bees.... however I do agree this sounds odd, but hope to see some (however crude) diagrams of this.. Lost Perhaps heat is causing convection currents in the setup and the rising heated water is causing a flow. As there's no other obvious source of energy, I can't think of any other way you could have circulation. You did mention it's hot. Could this be it? Is the flow of water back warm? |
#5
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"Lostin1999" wrote in message
... "Lane" lane_nospam@copperaccents_dot_com wrote in message ... "cruxaustralis" wrote in message ... During a break from digging my pond, and basking in the warm Queensland sunshine it occured to me that I could use the hydraulic pressure of the pond to pump/siphon water into my veggie filter. So i built a model using a 20 liter drum and it's been pumping/siphoning away like a beauty for a week. I used a network of 12mm poly irrigation pipe in the bottom of the drum and initially primed/siphoned the outlet line into a plastic tub, about a metre head..with an overflow outlet back to the drum...topped up the level as it got pumping and voila!. A search of the web has rewarded me with no links to something similar..so now I'm beginning to worry that I am missing something obvious in my new found enthusiasm. As a result I now have a niggling doubt that this will all fail when scaled up. Anyone have a clue that might save me from a fundamental error when the real thing is needed? Not possible, defies the laws of physics. so do bumble bees.... however I do agree this sounds odd, but hope to see some (however crude) diagrams of this.. Lost Perhaps heat is causing convection currents in the setup and the rising heated water is causing a flow. As there's no other obvious source of energy, I can't think of any other way you could have circulation. You did mention it's hot. Could this be it? Is the flow of water back warm? |
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