Items TO KNOW ABOUT FOUNTAIN PUMPS

出典: くみこみックス

2012年7月7日 (土) 15:37の版

When replacing a fountain pump or picking a new 1, initial there are some crucial terms to keep in thoughts:

"Head": This is the maximum vertical lift of the pump. For example, a 6' head implies the pump is rated to pump water up to 6 feet high. Note, nonetheless, that at 6 feet the pump would be offering quite little high ph diet water, with gallons per hour about zero. So if you need to pump, say, 200 gph at 72", you will probably need to have about a 300-600 gallon per hour pump to do the job.

"GPH" : Gallons per hour, usually rated at my chanson water various heights

"GPM" : Gallons per minute, usually rated at diverse 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 very first time or when searching for a replacement pump, it is essential 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 aspects. 1 aspect 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 ways: inside diameter (i.d.) and outside diameter (o.d.). Very skinny i.d. tubing will significantly reduce water flow. Numerous consumers are shocked when they discover that, following hooking up their 500 gallon per hour pump to 1/two" inside diameter tubing, they are only finding what they think about a trickle.

We had an engineer do some calculations for us to illustrate the problem. Using a 300 gph pump with 1/two" tubing is going to restrict your flow to 253 gallons per hour. By increasing the pump to 450 gallons per hour, but nonetheless using 1/two" tubing, you will increase volume only slightly, to 264 gallons per hour! The lesson is this: When purchasing a pump, discover out what size of tubing is supposed to go with it. Yet another problem is running the tubing too far. Long lengths of tubing create 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 3/four" tubing rather so as not to cut down too a lot on flow.

How much water do I need to have? What size of pump? This question is answered in element by whether or not you want a "trickle" or a roar. When you get a fountain, you will generally discover a advised flow. For waterfalls, use this as a rule of thumb: for each inch of stream width or waterfall "sheet," you will need to have 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 get a pump that will be pumping 1200 gallons per hour at three feet of alkaline bottled water height. For small ponds, whenever feasible, it is a excellent concept to recirculate the water once

an hour, much more often if feasible. 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 genuinely

significant ponds, this is not needed and is far also costly.