Things TO KNOW ABOUT FOUNTAIN PUMPS

出典: くみこみックス

2012年7月9日 (月) 08:08の版

When replacing a fountain pump or picking a new 1, 1st there are some key terms to keep in mind:

"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, nonetheless, that at 6 feet the pump would be offering very small water, with gallons per hour about zero. So if you require to pump, say, 200 gph at 72", you will possibly need about a 300-600 gallon per hour pump to do the job.

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

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

"Pump Curve" : The quantity of water volume "curved" according to numerous heights. A portable water ionizer 500 gallon per hour pump, for instance, might pump 500 gallons per hour at " lift, 350 gallons per hour clicky at 24" of lift, and so forth. When purchasing a pump for the first time or when seeking a replacement pump, it is vital that you know how numerous 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 element is the size of the pump, as covered above. But you also need to take into account how wide your tubing will be. Tubing is measured in two techniques: inside diameter (i.d.) and outside diameter (o.d.). Really skinny i.d. tubing will greatly decrease water flow. Numerous customers are shocked when they locate that, right after hooking up their 500 gallon per hour pump to 1/two" inside diameter tubing, they are only obtaining what they consider a trickle.

We had an engineer do some calculations for us to illustrate the issue. Using a 300 gph pump with 1/2" tubing is going to restrict your flow to 253 gallons per hour. By rising the pump to 450 gallons per hour, but still utilizing 1/two" tubing, you will enhance volume only slightly, to 264 gallons per hour! The lesson is this: When acquiring a pump, discover out what size of tubing is supposed to go with it. One more difficulty is operating the tubing too far. Lengthy lengths of tubing develop 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 alkaline water machine is

a very good thought to use three/4" tubing rather so as not to cut down too significantly on flow.

How significantly water do I need to have? What size of pump? This question is answered in portion by no matter whether you want a "trickle" or a roar. When you acquire a fountain, you will typically uncover a suggested flow. For waterfalls, use this as a rule of thumb: for every single inch of stream width or waterfall "sheet," you will need to have 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 want to get a pump that will be pumping 1200 gallons per hour at three feet of height. For small ponds, whenever feasible, it is a great idea to recirculate the water once

an hour, much more frequently if possible. 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 needed and is far also high-priced.