Factors TO KNOW ABOUT FOUNTAIN PUMPS

出典: くみこみックス

2012年7月1日 (日) 09:29の版

When replacing a fountain pump or choosing a new one particular, first there are some important terms to keep in thoughts:

"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, however, that at 6 feet the pump would be supplying very little water, with gallons per buy ionized water hour around zero. So if you need 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" : turbo extreme Gallons per hour, typically rated at different heights

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

"Pump Curve" : The amount of water volume "curved" according to numerous 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 very first time or when searching for a replacement pump, it is vital that you know how several gallons per hour you want to pump and at what height jupiter water filter (head).

Water Volume The total volume that you will be pumping is controlled by a few factors. One particular factor is the size of the pump, as covered above. But you also should take into account how wide your tubing will be. Tubing is measured in two ways: inside diameter (i.d.) and outside diameter (o.d.). Extremely skinny i.d. tubing will greatly lessen water flow. Several customers are shocked when they discover that, right after hooking up their 500 gallon per hour pump to 1/2" inside diameter tubing, they are only getting what they take into account a trickle.

We had an engineer do some calculations for us to illustrate the difficulty. Making use of 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 improve volume only slightly, to 264 gallons per hour! The lesson is this: When getting a pump, locate out what size of tubing is supposed to go with it. One more dilemma is running the tubing too far. Lengthy lengths of tubing develop resistance. If your pump calls for 1/2" i.d. tubing, for instance, but you are operating the tubing twenty feet from the pump, it is

a excellent notion to use 3/4" tubing rather so as not to cut down also considerably on flow.

How much water do I need? What size of pump? This question is answered in element by no matter whether you want a "trickle" or a roar. When you acquire a fountain, you will generally uncover 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're pumping. So if you are developing a 12" wide waterfall that is 3 feet tall, you want to get a pump that will be pumping 1200 gallons per hour at three feet of height. For little ponds, whenever attainable, it is a very good notion to recirculate the water as soon as

an hour, far more usually if possible. Therefore, if your pond is 500 gallons, try to get

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

huge ponds, this is not necessary and is far also costly.