IntelliflowXF - Plumbing

darinclifton

Active member
Jun 2, 2019
34
St. Louis
So the IntelliflowXF seems to be a great pump, yet I don't see any "normal" filters that can accommodate 3" plumbing, any thoughts? I am in the final work on my pool design would like some feed back. Certainly my return line can/will be 3" but will dropping the supply to 2 or 2 1/2" be a problem? To clarify, I have a large water feature that I am using a dedicated IntelliflowXF for and would like to use the same pump for the normal filter side so I have a redundant pumps if the filter pump were to ever go out.

Planned pool size approximately 12,000
Water feature 9' wide x 5'6" tall
 

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JamesW

TFP Expert
Mar 2, 2011
20,360
The suction is most critical.

You need to know the flow rate intended for each pipe.

For suction, you want to keep the water velocity below 6 ft/sec. For returns, you want to keep the water velocity below 8 ft/sec.

Size.......6 ft/sec......8 ft/sec.
1.5"...........38...............51 gpm
2"..............63...............84 gpm
2.5............90.............119 gpm
3.0".........138.............184 gpm

What is the maximum flow rate for the water feature?
 

bdavis466

TFP Expert
Platinum Supporter
Aug 4, 2014
5,529
San Clemente, CA
The suction should be 3" regardless. Why is the water feature return line plumbed into the suction of the filter pump?

If you need maximum flow then consider an automated filter bypass but a dedicated feature pump would be a much better choice. Your proposal is needlessly complicated.

An AF-180 would be a more efficient pump for the water feature.
 
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darinclifton

Active member
Jun 2, 2019
34
St. Louis
Why is the water feature return line plumbed into the suction of the filter pump?

If you need maximum flow then consider an automated filter bypass but a dedicated feature pump would be a much better choice.
There 2 sumps for the water feature, the idea is that we will circulate a small amount of water while we are running the filter pump to keep those clean when the water feature is not being used
 

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JamesW

TFP Expert
Mar 2, 2011
20,360
The XF is basically the same pump as the VS but with a slightly better design.

The drive and motor are the same.
 
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JamesW

TFP Expert
Mar 2, 2011
20,360
The IntelliFlo XF claims better efficiency but a lower WEF number.

Innovative hydraulic isolator creates faster priming and is turbulence free for increased efficiency.
WEF 5.6 THP 3.95
IntelliFloXF Variable Speed Pump

WEF 6.1 THP 3.95
sku-page


If the price is close, I think that I would get the XF. If the XF is a lot more, I would get the regular 011028 model.
 
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RoyR

Bronze Supporter
Jul 31, 2018
307
Escondido/CA
Once you figure out that the water feature provides 1 minute of visual pleasure, and pushes up the pH, the use would be reduced to a “impress” moment....plumb accordingly, your pool, your money...
 

JamesW

TFP Expert
Mar 2, 2011
20,360
Once you figure out that the water feature provides 1 minute of visual pleasure, and pushes up the pH, the use would be reduced to a “impress” moment....plumb accordingly, your pool, your money...
It has to be plumbed correctly.

Assuming the amount of use doesn't change the plumbing requirements.
 
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