Pool Waterfalls Original Oasis Guide

Now that you have chosen the style of waterfall you like. You need to figure out the Length of your waterfall and the lip size. The Original Oasis pool waterfall comes in a choice of 8 different sizes, with 4 lip sizes. Below is a chart of the different sizes available for the Pool Waterfall and also shows the dimensions of the actual waterfall.

Pump used for PVC Waterfalls
Your waterfall will need its own pump. The pump you choose depends on the size of your waterfall. We recommend that for each inch in your waterfall length you get a pump with 1 GPM. So if you purchase a 48" Original waterfall you will need a pump that can handle 48 GPM. The Hayward Super II pump is an ideal Pump for PVC Waterfalls. Below is the Performance chart for the Super II at 50' of head. This is a typical head pressure, but you should figure the total amount of head on your pump if you do not know (for more information on calculating your pump GPM click here).

Click for more information on the Hayward Super II Pump

You can use one pump for more than one waterfall. For example if you have 2 - 24" waterfalls you would want a pump that can output at least 48 GPM.The size of your plumbing will also determine the HP of pump you will need. To determine what size plumbing you should use from the pump to the waterfall please use the chart below.

Hydraulic Guideline Chart

• Use minimum of 1.5” pipe
• Use minimum of 2” pipe for runs in excess of 60’ or if
  the waterfall is over 5’.
• Dedicated plumbing lines are recommended
• Maximum recommended flow for a typical installation:

For more information about installing PVC Pool Waterfalls please click here.