Issues TO KNOW ABOUT FOUNTAIN PUMPS: Unterschied zwischen den Versionen

Version vom 10. August 2012, 03:37 Uhr

When replacing a fountain pump or selecting a new one, first there are some crucial terms to preserve 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, even so, that at 6 feet the pump would be offering very little water, with gallons per hour about zero. So if you need to pump, say, 200 gph at 72", you will probably require about a 300-600 gallon per hour pump to do the job.

"GPH" : Gallons per hour, generally rated at various heights

"GPM" : Gallons per minute, usually rated at diverse heights

"Pump Curve" : The quantity of water volume "curved" according to several 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 purchasing a pump for the first time or when searching for a replacement pump, it is vital 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 couple of elements. One particular factor is the size of the pump, as covered above. But you also need to contemplate 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 drastically reduce water flow. Numerous customers are shocked when they find that, right after hooking up their 500 gallon per hour pump to 1/2" inside diameter tubing, they are only obtaining what they consider a trickle.

We had an engineer do some calculations for us to illustrate the problem. Employing 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 nonetheless making use of 1/two" tubing, you will increase volume only slightly, to 264 gallons per hour! The lesson is this: When buying a pump, locate out what size of tubing is supposed to go with it. An additional issue is running the tubing too far. Lengthy lengths of tubing develop 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 excellent notion to use three/4" tubing instead so as not to reduce down as well considerably on flow.

How significantly water do I need? What size of pump? This query is answered in component by whether you want a "trickle" internet alkaline cancer or a roar. When you acquire a fountain, you will normally discover a recommended flow. For waterfalls, use this as a rule of thumb: for every inch of stream width or waterfall "sheet," you will require to deliver 100 alkaline water ionizer gallons per hour at the height you happen to be pumping. So if you are constructing a 12" wide waterfall that is 3 feet tall, you need to acquire a pump that will be pumping 1200 gallons per hour at three feet of height. For little ponds, anytime possible, it is a great thought to recirculate the water once

an hour, more often if possible. Therefore, if alkaline water scam your pond is 500 gallons, try to buy

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

big ponds, this is not necessary and is far also pricey.