Issues TO KNOW ABOUT FOUNTAIN PUMPS

出典: くみこみックス

2012年7月3日 (火) 09:58の版

When replacing a fountain pump or selecting a new one, very first there are some important terms to maintain 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, nonetheless, that at 6 feet the pump would be providing quite tiny water, with gallons per hour around zero. So if you need to pump, say, 200 gph at 72", you will possibly require about a 300-600 gallon per hour pump visit ph diet to do the job.

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

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

"Pump Curve" : The quantity of water volume "curved" according to different heights. A 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 purchasing a pump for the first time or when searching for a replacement pump, it is essential 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 couple of elements. A single element is the size of the pump, as covered above. But you also must take into account how wide your tubing will be. Tubing is measured in two approaches: inside diameter (i.d.) and outside diameter (o.d.). Quite skinny i.d. tubing will greatly lessen water flow. Numerous consumers are shocked when they locate that, following hooking up ionized water myth their 500 gallon per hour pump to 1/two" inside diameter tubing, they are only finding what they consider a trickle.

We had an engineer do some calculations for us to illustrate the dilemma. 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 utilizing 1/two" tubing, you will enhance buy ionized water 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 more problem is running 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 operating the tubing twenty feet from the pump, it is

a great thought to use 3/4" tubing rather so as not to cut down too a lot on flow.

How considerably water do I require? What size of pump? This question is answered in portion by regardless of whether you want a "trickle" or a roar. When you get a fountain, you will generally find 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 deliver 100 gallons per hour at the height you are pumping. So if you are constructing a 12" wide waterfall that is 3 feet tall, you require to buy a pump that will be pumping 1200 gallons per hour at 3 feet of height. For tiny ponds, whenever achievable, it is a great thought to recirculate the water as soon as

an hour, much more often if achievable. Thus, if your pond is 500 gallons, try to buy

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

significant ponds, this is not required and is far too pricey.