Factors TO KNOW ABOUT FOUNTAIN PUMPS: Unterschied zwischen den Versionen

Version vom 27. August 2012, 01:28 Uhr

When replacing a fountain pump or choosing a new one particular, very first there are some key terms to maintain in thoughts:

"Head": This is the maximum vertical lift of the pump. For example, a 6' head signifies the pump is rated to pump water up to 6 feet high. Note, however, that at 6 feet the pump would be providing really little water, with gallons per hour about zero. So if you need to pump, say, 200 gph at 72", you will most likely want about a 300-600 gallon per hour pump to do the job.

"GPH" : Gallons per hour, generally rated at various heights

"GPM" : Gallons per minute, generally rated at different heights

"Pump Curve" : The amount of water volume "curved" according to numerous heights. A 500 gallon per hour pump, for instance, might pump 500 gallons per hour at " lift, 350 gallons per hour at 24" of lift, and so forth. When acquiring a pump for the initial time or when searching for a replacement pump, it is crucial that you know how a lot of gallons per hour you want to pump and at what height (head).

Water Volume The total volume that you will be pumping is controlled by a handful of elements. One particular aspect is the size of the pump, as covered above. But you also should contemplate how wide your tubing will be. Tubing is measured in two approaches: inside diameter (i.d.) and outside diameter (o.d.). Very skinny i.d. tubing will drastically minimize water flow. Numerous clients are shocked when they discover that, what is reverse osmosis immediately after hooking up their 500 gallon per hour pump to 1/2" inside diameter tubing, they are only getting what they consider a trickle.

We had an engineer do some calculations for us to illustrate the dilemma. Using a 300 gph pump with 1/two" tubing is going to restrict your flow to 253 gallons per hour. By growing the pump to 450 gallons per hour, but still making use of 1/two" home water filters tubing, you will increase volume only slightly, to 264 gallons per hour! The lesson is this: When purchasing a pump, discover out what size of tubing is supposed to go with it. An additional problem is running the tubing also far. Lengthy lengths of tubing produce resistance. If your pump calls for 1/2" i.d. tubing, for instance, but you are operating the tubing twenty feet from the pump, it is

a great notion to use three/4" tubing water ionizers as an alternative so as not to cut down too considerably on flow.

How much water do I need? What size of pump? This question is answered in part by whether you want a "trickle" or a roar. When you buy a fountain, you will usually locate a advised flow. For waterfalls, use this as a rule of thumb: for each inch of stream width or waterfall "sheet," you will need to deliver 100 gallons per hour at the height you're pumping. So if you are creating a 12" wide waterfall that is three feet tall, you require to buy a pump that will be pumping 1200 gallons per hour at 3 feet of height. For modest ponds, anytime attainable, it is a good concept to recirculate the water as soon as

an hour, a lot more typically if achievable. As a result, if your pond is 500 gallons, try to get

a pump that will recirculate water at a rate of 500 gallons per hour. For genuinely

significant ponds, this is not essential and is far too expensive.