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#1
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Jet pump configuration for lake use at cottage ?
On Jun 27, 3:06*pm, John wrote:
Hi folks, I'm going to install a lake water system at my new cottage and part of that is re-using a Duro 1/2 hp pump from a friend. It was set up at his place in a deep well application with the ejector / venturi unit in his well using a two hose connection between the well and the pump inside his cottage. His handyman disposed of the ejector so I ended up buying a new universal ejector / venturi unit but it doesn't fit on the pump body, as one would do in a shallow well/lake application like mine (15' lift). The question is whether or not I should use a double pipe to have the ejector in the lake near the foot valve, or can I just hook it up near the pump and have just a single pipe to the lake. Are there any considerations with priming etc? Your advice is greatly appreciated, John With a 15ft lift you do not need an ejector. Single pipe works fine with a footvalve. Priming? Keep your suction pipe as near verticle as possible with the pump as near the lake as you can get. The closer to horizontal any section of the suction pipe is, the more priming problems you will have. Harry K |
#2
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Jet pump configuration for lake use at cottage ?
If the ejector doesn't fit the pump body, connect it to the body with short
lengths of pipe, such as 1 foot long pieces. It will work the same as actually connecting it with the pump. Saves all the double piping, which you don't need. "Harry K" wrote in message ... On Jun 27, 3:06 pm, John wrote: Hi folks, I'm going to install a lake water system at my new cottage and part of that is re-using a Duro 1/2 hp pump from a friend. It was set up at his place in a deep well application with the ejector / venturi unit in his well using a two hose connection between the well and the pump inside his cottage. His handyman disposed of the ejector so I ended up buying a new universal ejector / venturi unit but it doesn't fit on the pump body, as one would do in a shallow well/lake application like mine (15' lift). The question is whether or not I should use a double pipe to have the ejector in the lake near the foot valve, or can I just hook it up near the pump and have just a single pipe to the lake. Are there any considerations with priming etc? Your advice is greatly appreciated, John With a 15ft lift you do not need an ejector. Single pipe works fine with a footvalve. Priming? Keep your suction pipe as near verticle as possible with the pump as near the lake as you can get. The closer to horizontal any section of the suction pipe is, the more priming problems you will have. |
#3
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Jet pump configuration for lake use at cottage ?
On Jun 28, 12:23*am, "EXT" wrote:
If the ejector doesn't fit the pump body, connect it to the body with short lengths of pipe, such as 1 foot long pieces. It will work the same as actually connecting it with the pump. Saves all the double piping, which you don't need. "Harry K" wrote in message ... On Jun 27, 3:06 pm, John wrote: Hi folks, I'm going to install a lake water system at my new cottage and part of that is re-using a Duro 1/2 hp pump from a friend. It was set up at his place in a deep well application with the ejector / venturi unit in his well using a two hose connection between the well and the pump inside his cottage. His handyman disposed of the ejector so I ended up buying a new universal ejector / venturi unit but it doesn't fit on the pump body, as one would do in a shallow well/lake application like mine (15' lift). The question is whether or not I should use a double pipe to have the ejector in the lake near the foot valve, or can I just hook it up near the pump and have just a single pipe to the lake. Are there any considerations with priming etc? Your advice is greatly appreciated, John With a 15ft lift you do not need an ejector. *Single pipe works fine with a footvalve. Priming? *Keep your suction pipe as near vertical as possible with the pump as near the lake as you can get. *The closer to horizontal any section of the suction pipe is, the more priming problems you will have.- Hide quoted text - - Show quoted text - We used a Duro pump with about a 12 foot deep well for about 10 years. One of its characteristics was that, from that depth, it was self priming. The venturi jet unit was mounted right on the pump and there was a single pipe down the well almost immediately below. But we understood from the instructions that the venturi could have been detached and placed down a deeper well using a two pipe system. With a 15 foot or less lift a single pipe may be fine; although you may have to prime the pump first time? |
#4
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Jet pump configuration for lake use at cottage ?
On Jun 27, 11:59*pm, terry wrote:
On Jun 28, 12:23*am, "EXT" wrote: If the ejector doesn't fit thepumpbody, connect it to the body with short lengths of pipe, such as 1 foot long pieces. It will work the same as actually connecting it with thepump. Saves all the double piping, which you don't need. "Harry K" wrote in message .... On Jun 27, 3:06 pm, John wrote: Hi folks, I'm going to install a lake water system at my new cottage and part of that is re-using a Duro 1/2 hppumpfrom a friend. It was set up at his place in a deep well application with the ejector / venturi unit in his well using a two hose connection between the well and thepump inside his cottage. His handyman disposed of the ejector so I ended up buying a new universal ejector / venturi unit but it doesn't fit on thepumpbody, as one would do in a shallow well/lake application like mine (15' lift). The question is whether or not I should use a double pipe to have the ejector in the lake near the foot valve, or can I just hook it up near thepumpand have just a single pipe to the lake. Are there any considerations with priming etc? Your advice is greatly appreciated, John With a 15ft lift you do not need an ejector. *Single pipe works fine with a footvalve. Priming? *Keep your suction pipe as near vertical as possible with the pumpas near the lake as you can get. *The closer to horizontal any section of the suction pipe is, the more priming problems you will have.- Hide quoted text - - Show quoted text - We used a Duropumpwith about a 12 foot deep well for about 10 years. One of its characteristics was that, from that depth, it was self priming. The venturijetunit was mounted right on thepumpand there was a single pipe down the well almost immediately below. But we understood from the instructions that the venturi could have been detached and placed down a deeper well using a two pipe system. With a 15 foot or less lift a single pipe may be fine; although you may have to prime thepumpfirst time? Thanks all - I'll connect the ejector with short pieces of pipe. A few other people confirmed that with such short lift the pump will have no problem getting strong suction right off the bat. John |
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