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Pipe Size
Is it better to over size your pipe or undersize your pipe?
Here is my predicament. I am slowly working on my plan for my pond now, but I can expect I will have it dug before I am ready to buy the pumps and other gear. I plan to shop around a bit. So I want to run the pipes for the skimmer and the bottom drain, etc., but if I have not decided on a pump yet, I figured this would be a problem. Should I just run twin 2 inch PVC pipes and use both if I need the 4 inches of bandwidth, and cap one if I don't? -- BenignVanilla tibetanbeefgarden.com x-no-archive: yes Remove MY SPLEEN to email me. |
Pipe Size
BenignVanilla wrote:
Is it better to over size your pipe or undersize your pipe? Here is my predicament. I am slowly working on my plan for my pond now, but I can expect I will have it dug before I am ready to buy the pumps and other gear. I plan to shop around a bit. So I want to run the pipes for the skimmer and the bottom drain, etc., but if I have not decided on a pump yet, I figured this would be a problem. Should I just run twin 2 inch PVC pipes and use both if I need the 4 inches of bandwidth, and cap one if I don't? -- BenignVanilla tibetanbeefgarden.com x-no-archive: yes Remove MY SPLEEN to email me. 1st, 2"+2" doesnt = 4" :) a 2.25" or 2.5" would be fine. in pipe sizing the next step up is close to double the cap. i.e. a 1.5" pipe is 1/2 the cap. of a 2" doubters: take a 12" piece of ea. (capped at 1 end and fill the smaller w/ water, then pour it into the next size. surprising huh? ;) -- http://www.kencofish.com Ken Arnold, 401-781-9642 Importer/Exporter of Goldfish,Koi,rare Predators Shipping to legal states/countries only! Permalon liners, Oase & Supreme Pondmaster pumps Please Note: No trees or animals were harmed in the sending of this contaminant free message We do concede that a signicant number of electrons may have been inconvenienced. |
Pipe Size
BenignVanilla wrote: Is it better to over size your pipe or undersize your pipe? Here is my predicament. I am slowly working on my plan for my pond now, but I can expect I will have it dug before I am ready to buy the pumps and other gear. I plan to shop around a bit. So I want to run the pipes for the skimmer and the bottom drain, etc., but if I have not decided on a pump yet, I figured this would be a problem. Should I just run twin 2 inch PVC pipes and use both if I need the 4 inches of bandwidth, and cap one if I don't? -- BenignVanilla tibetanbeefgarden.com x-no-archive: yes Remove MY SPLEEN to email me. BV go with the largest pipe you can, my mag drives have 1 in outlets but to get full capacity(GPH) out of them I use 2 in pipe, Im redesigning the filters and moving em farther from the pond so am planing on going to 4-6 in pipe -- John Rutz I'm not Porg am not am not am so see my pond at: http://www.fuerjefe.com |
Pipe Size
Since your're from New Orleans, it would be more appropriate to remove
the RICE to reply. MLF wrote: "KenCo" wrote: in pipe sizing the next step up is close to double the cap. i.e. a 1.5" pipe is 1/2 the cap. of a 2" doubters: take a 12" piece of ea. (capped at 1 end and fill the smaller w/ water, then pour it into the next size. surprising huh? ;) You are correct. As everyone knows, pi are squared. (Cornbread are squared too, but birthday cake are round.) Michael Fermanis New Orleans, Louisiana USA (Remove the POTATO to reply) ================================================= ========== |
Pipe Size
John's the man.
Pipe size has more to think about the water capacity. More important is the drag the pipe imparts on the water (static head). In general big pipes move more water then smaller pumps given the same size pump. Also large radius elbows are better then small radius ones. In general (again) sewer parts tend to provide the right parts for the job. Howard "John Rutz" wrote in message ... BenignVanilla wrote: Is it better to over size your pipe or undersize your pipe? Here is my predicament. I am slowly working on my plan for my pond now, but I can expect I will have it dug before I am ready to buy the pumps and other gear. I plan to shop around a bit. So I want to run the pipes for the skimmer and the bottom drain, etc., but if I have not decided on a pump yet, I figured this would be a problem. Should I just run twin 2 inch PVC pipes and use both if I need the 4 inches of bandwidth, and cap one if I don't? -- BenignVanilla tibetanbeefgarden.com x-no-archive: yes Remove MY SPLEEN to email me. BV go with the largest pipe you can, my mag drives have 1 in outlets but to get full capacity(GPH) out of them I use 2 in pipe, Im redesigning the filters and moving em farther from the pond so am planing on going to 4-6 in pipe -- John Rutz I'm not Porg am not am not am so see my pond at: http://www.fuerjefe.com |
Pipe Size
"John Rutz" wrote in message
... snip go with the largest pipe you can, my mag drives have 1 in outlets but to get full capacity(GPH) out of them I use 2 in pipe, Im redesigning the filters and moving em farther from the pond so am planing on going to 4-6 in pipe So 4'' for my bottom drains, skimmer, filter, all runs? BV. |
Pipe Size
BenignVanilla wrote: "John Rutz" wrote in message ... snip go with the largest pipe you can, my mag drives have 1 in outlets but to get full capacity(GPH) out of them I use 2 in pipe, Im redesigning the filters and moving em farther from the pond so am planing on going to 4-6 in pipe So 4'' for my bottom drains, skimmer, filter, all runs? BV. yup that way almost no added head due to lenth of pipe run -- John Rutz I'm not Porg am not am not am so see my pond at: http://www.fuerjefe.com |
Pipe Size
"John Rutz" wrote in message
... snip So 4'' for my bottom drains, skimmer, filter, all runs? snip yup that way almost no added head due to lenth of pipe run snip I assume that it is safe to bury these pipes? I plan to lay the bottom drains before I line the pond, and then cut the liner to fit around the pipes. So some weight of the pond will be on these pipes. I am also curious, as I have not investigated pumps yet, as to what the standard fitting size is for a pump? I assuming it is not a 4'' connection point. So is downsizing from 4'' to 2'' a problem? BV. |
Pipe Size
"BenignVanilla" wrote:
"John Rutz" wrote in message ... snip go with the largest pipe you can, my mag drives have 1 in outlets but to get full capacity(GPH) out of them I use 2 in pipe, Im redesigning the filters and moving em farther from the pond so am planing on going to 4-6 in pipe So 4'' for my bottom drains, skimmer, filter, all runs? Some of that depends on the parts you select. IE I've seen in pond skimmers, that hook up to inch and half. Kinda a waste to run 4 inch pipe only to neck it down that much, since most pumps don't take that either. 4 inch is good for gravity flow lines, pressure lines, those connected up to a pump, are usually smaller, based on the size the pump takes. Typically it is feasable, and desirable to go up one pipe size from the fitting, thus an 1.25" threaded pump output, would go to a 1.25NPTto1.5slip PVC fitting, and be plumbed with 1.5 inch pvc pipe. That is how I have my current setup, an in pond pump goes out with that fitting, 1.5 inch flex pvc to 1.5 inch sched 40 that feeds my upflow filter (150 gal stock tank) which exits via a 3" pvc pipe, up near the top of the tank. Now of course, your pond and pumps might be sized for 4 or 6 inch PVC. I have a piece of 12" sched 80 PVC that was donated by a buddy as surplus from work, it is going to be a while before I need to use that in MY pond. G |
Pipe Size
"John Hines" wrote in message
... snip Some of that depends on the parts you select. IE I've seen in pond skimmers, that hook up to inch and half. Kinda a waste to run 4 inch pipe only to neck it down that much, since most pumps don't take that either. snip So what you are saying...that my plan of run all my pipes and figure on a pump later could be a bad idea? BV. |
Pipe Size
Big pipes have less resistance to water flow then smaller pipes.
Water travels through the pump a lot faster then you want to push or pull it through the pipes. The larger pipe diameter allows the water to flow at a slower (less friction) pace. The only downside to a larger pipe diameter is that if you slow the water too much solids might settle out on the bottom of the pipes. I doubt that this would be a problem given any reasonable pump selection. Howard "BenignVanilla" wrote in message ... "John Hines" wrote in message ... snip Some of that depends on the parts you select. IE I've seen in pond skimmers, that hook up to inch and half. Kinda a waste to run 4 inch pipe only to neck it down that much, since most pumps don't take that either. snip So what you are saying...that my plan of run all my pipes and figure on a pump later could be a bad idea? BV. |
Pipe Size
BenignVanilla wrote: "John Hines" wrote in message ... snip Some of that depends on the parts you select. IE I've seen in pond skimmers, that hook up to inch and half. Kinda a waste to run 4 inch pipe only to neck it down that much, since most pumps don't take that either. snip So what you are saying...that my plan of run all my pipes and figure on a pump later could be a bad idea? BV. yes they can be burried all you neeed is the adaptors from pump usualy 1 in to the 4 in pipe takes usualy depending on your lowes or home depot or pipe and pump supply a 1 to 1.5 then a 1.5 to 2( these you can find in white pvc)and a 2 to 4 here you need to hit the swer conections black pvc or grey electical PVC I use a flex tube from the pump to the adaptors so there is no strain on the pump when pulling it for cleaning -- John Rutz I'm not Porg am not am not am so see my pond at: http://www.fuerjefe.com |
Pipe Size
"BenignVanilla" writes:
So 4'' for my bottom drains, skimmer, filter, all runs? Note that 20 feet of 4 inch pipe holds 131 gallons of water. That's as much as three 50 gallon barrel filters typically hold. If this is above the water line of the pond, and if it's a small pond, it'll lower the pond after the pump is turned on. And if power is lost, it'll drain back through the pump and overflow a small pond. |
Pipe Size
If you have any idea of the size that of your pond will be, (ball park idea)
figure out approximate gallons. You should run about 1/2 of your pond volume through the filter per hour. That will give you an approximate flow rate, then go to http://www.geocities.com/researchtri.../hydrodyn.html to get an idea of the pipe size that should be used for that flow rate. Hope this helps. Paul "BenignVanilla" wrote in message ... Is it better to over size your pipe or undersize your pipe? Here is my predicament. I am slowly working on my plan for my pond now, but I can expect I will have it dug before I am ready to buy the pumps and other gear. I plan to shop around a bit. So I want to run the pipes for the skimmer and the bottom drain, etc., but if I have not decided on a pump yet, I figured this would be a problem. Should I just run twin 2 inch PVC pipes and use both if I need the 4 inches of bandwidth, and cap one if I don't? -- BenignVanilla tibetanbeefgarden.com x-no-archive: yes Remove MY SPLEEN to email me. |
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