Factors TO KNOW ABOUT FOUNTAIN PUMPS

出典: くみこみックス

2012年8月10日 (金) 01:36の版

When replacing a fountain pump or choosing a new a single, 1st there are some important ph diet terms to maintain in thoughts:

"Head": This is the maximum vertical lift of the pump. For instance, a 6' head implies the pump is rated to pump water up to 6 feet high. Note, nevertheless, that at 6 feet the pump would be offering quite tiny water, with gallons per hour about zero. So if you need to pump, say, 200 gph at 72", you will almost certainly need to have 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, typically rated at different heights

"Pump Curve" : The amount of water volume "curved" according to different 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 buying a pump for the very first time or when seeking a replacement pump, it is ionized water machine 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 factors. 1 element is the image size of the pump, as covered above. But you also should think about how wide your tubing will be. Tubing is measured in two approaches: inside diameter (i.d.) and outside diameter (o.d.). Extremely skinny i.d. tubing will greatly reduce water flow. Many customers are shocked when they discover that, right 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 difficulty. Employing 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 nevertheless using 1/two" tubing, you will enhance volume only slightly, to 264 gallons per hour! The lesson is this: When acquiring a pump, locate out what size of tubing is supposed to go with it. Yet another dilemma is running the tubing as well far. Lengthy lengths of tubing develop 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 good idea to use three/4" tubing as an alternative so as not to cut down as well significantly on flow.

How a lot water do I need to have? What size of pump? This question is answered in element by regardless of whether you want a "trickle" or a roar. When you get a fountain, you will generally locate a encouraged flow. For waterfalls, use this as a rule of thumb: for every 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 developing a 12" wide waterfall that is 3 feet tall, you need to have to acquire a pump that will be pumping 1200 gallons per hour at 3 feet of height. For small ponds, whenever achievable, it is a great notion to recirculate the water once

an hour, a lot more usually if attainable. Therefore, if your pond is 500 gallons, try to buy

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

large ponds, this is not needed and is far also expensive.