Things TO KNOW ABOUT FOUNTAIN PUMPS

出典: くみこみックス

2012年6月22日 (金) 20:51の版

When replacing a fountain pump or deciding on a new one particular, 1st there are some crucial terms to preserve in thoughts:

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

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

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

"Pump Curve" : The amount of water volume "curved" according to different heights. A 500 gallon per hour pump, for instance, may pump 500 gallons per hour at " lift, 350 gallons per hour at 24" of lift, and so forth. When buying a pump for the 1st time or when looking for a replacement pump, it is vital that you know how many gallons per hour you home page want to pump and at what height (head).

Water Volume The total volume that you will be pumping is controlled by a few factors. One particular element 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 techniques: inside diameter (i.d.) and outside diameter (o.d.). Very skinny i.d. tubing will tremendously reduce water flow. Numerous buyers are shocked when they discover that, after hooking up their 500 gallon per hour pump to 1/two" inside diameter tubing, they are only getting what they think about a trickle.

We had an engineer do some calculations for us to illustrate the issue. Making use of a 300 gph pump with 1/2" tubing is going to restrict your flow to 253 gallons per hour. By escalating the pump to 450 gallons per hour, but nonetheless making use of 1/two" tubing, you will enhance volume only slightly, to 264 gallons per hour! The lesson is this: When getting a pump, uncover out what size of tubing is supposed to go with it. One well water test kit article more difficulty is operating the tubing also far. Extended lengths of tubing produce resistance. If your pump calls for 1/two" i.d. tubing, for instance, but you are running the tubing twenty feet from the pump, it is

a great notion to use three/4" tubing rather so as not to cut down also much on flow.

How a lot water do I want? What size of pump? This question is answered in part by whether or not you want a "trickle" or a roar. When understandable you get a fountain, you will normally uncover a recommended flow. For waterfalls, use this as a rule of thumb: for every single inch of stream width or waterfall "sheet," you will need to deliver 100 gallons per hour at the height you are pumping. So if you are creating a 12" wide waterfall that is three feet tall, you require to acquire a pump that will be pumping 1200 gallons per hour at 3 feet of height. For tiny ponds, whenever possible, it is a great idea to recirculate the water once

an hour, a lot more typically if feasible. Thus, if your pond is 500 gallons, attempt to purchase

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

huge ponds, this is not required and is far too costly.