Things TO KNOW ABOUT FOUNTAIN PUMPS

出典: くみこみックス

2012年6月28日 (木) 09:07の版

When replacing a fountain pump or choosing a new one, initial there are some crucial terms to keep in mind:

"Head": This is the maximum vertical lift of the pump. For example, a 6' head means the pump is rated to pump water up to 6 feet high. Note, nevertheless, that at 6 feet the pump would be delivering very small water, with gallons per hour around zero. So if you require to pump, say, 200 gph at 72", you will almost certainly need about a 300-600 gallon per hour pump to do the job.

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

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

"Pump Curve" : The quantity of water volume "curved" according to different heights. A look into water ionizers 500 gallon per hour pump, for instance, may well pump 500 gallons per hour at " lift, 350 gallons per hour at 24" of lift, and so forth. When getting a pump for the initial time or when looking for a replacement pump, it is vital that you know how several 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 few elements. A single aspect is the size of the pump, as covered above. But you also ought to consider how wide your tubing will be. Tubing is measured in two techniques: inside diameter (i.d.) and outside diameter (o.d.). Extremely skinny i.d. tubing will tremendously reduce water flow. Many clients 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 consider a trickle.

We had an engineer do some calculations for us to illustrate the dilemma. Using a 300 gph pump with 1/2" tubing is going to restrict your flow to 253 gallons per hour. By increasing the pump to 450 gallons per hour, but still utilizing 1/two" tubing, you will boost 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. Yet another difficulty is operating the tubing also 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 great idea to use three/4" tubing instead so as not to cut down also considerably on flow.

How considerably water do I need to have? What size of pump? This question is answered in component by whether or not you want a "trickle" or a roar. When you buy a fountain, you will generally discover a suggested flow. For waterfalls, use this as a rule of thumb: for each inch of stream width or kangen water machine waterfall "sheet," you will need to deliver 100 gallons per hour at the height you are pumping. So if you are building a 12" wide waterfall that is three feet tall, you want to acquire a tyent turbo water ionizer pump that will be pumping 1200 gallons per hour at 3 feet of height. For modest ponds, whenever possible, it is a great concept to recirculate the water once

an hour, far more often if attainable. Therefore, if your pond is 500 gallons, attempt to purchase

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

big ponds, this is not essential and is far too costly.