Feet of head, flow rates, horse power, potential new pump to save money?

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G

Gilligan8

Well-known member
Nov 30, 2023
68
South Louisiana
Pool Size
11000
Surface
Fiberglass
Chlorine
Salt Water Generator
Trying to wrap my head around all of this.

I have an 11,000 gallon Royal pool (new to me) and currently it has just a skimmer with about a 60' run back to the 1.25 HP pump in 1.5" PVC into a Hayward Proseries S-244T.

I'm reading poolpartstogo and it is confusing me on the size of the pump I should get.

Currently drawing almost 12 amps, so 1.44 kw at .12 cents a kw so costing me about 17.3 cents an hour.

I KNOW going variable will save me money, but budget is tight right now, so was wanting to run the numbers and see what the ROI would be and probably could sell it to the wife if the math maths. ;)
 
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What is the daily runtime of your SS pump?

Any inexpensive VS pump will likely be fine for your pool although I doubt it will pencil out.

Run your SS pump for as few hours as necessary until it dies. Then get a VS pump.
 
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Pretty much any variable speed pump will work and you can run at about 200 watts (If no heater), which is a lot less than your current cost.

If you have a heater, the power usage during heating will be closer to about 400 watts to get about 40 GPM.
 
ajw22 said:
What is the daily runtime of your SS pump?

Any inexpensive VS pump will likely be fine for your pool although I doubt it will pencil out.

Run your SS pump gor as few hours as necessary until it dies. Then get a VS pump.
Click to expand...
First season... as of right now since we took the cover off I've just been running it 24/7 :confused:

I wanted to do the math and see what my turn over rate was and that led me down this rabbit hole.
 
You do not need to run your pump 24/7.

Run it as necessary to skim the pool, mix chemicals, or run your heater or SWG.
 
One more question... I know more variables go into this than we can calculate based on what little data I gave... but could anyone take a guess at what my turn over rate currently is?
 

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That's the motor.

The motor was replaced about 4 years ago.

Can you show the whole pump?

Can you show the model number for the pump?

It might be on a silver tag with something like P4EA...
 
Your current flow is probably about 70 to 75 GPM, which gives you a turnover of about 147 minutes (2.44 hours).

With a SuperFlo VST, you could run between about 1,500 RPM and about 1,725 RPM and get plenty of flow for less than 300 watts.


1709736535095.png


www.pentair.com

SuperFlo® VST Pool Pump

Pentair SuperFlo VST Variable Speed Pool Pump for inground pools is for pools requiring up to a 1.5 HP pump. This pump is a TradeGrade product.
www.pentair.com www.pentair.com

1709737087703.png


www.pentair.com

SuperFlo® VST Pool Pump

Pentair SuperFlo VST Variable Speed Pool Pump for inground pools is for pools requiring up to a 1.5 HP pump. This pump is a TradeGrade product.
www.pentair.com www.pentair.com
 

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  • pentair_challenger_pump_installation_operation_manual.pdf
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The pump will display the power used.

Many people can get plenty of flow for about 200 watts.

You can run 24/7 at about 1,400 rpm to about 1,725 rpm for very little cost and very little noise.

Just adjust the speed until you have skimmer action.

Do you have 1 skimmer or two skimmers?

Do you have good skimmer weir doors?

Do you have a main drain?

Pressing the Display button will cycle through the current parameters:
• Speed — current run speed
• Time — current time of day
• Duration — amount of time remaining at the
current run speed
• Watts — watts currently being consumed.

 
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This is your current pump.

It uses about 1,250 watts and it moves about 75 GPM, which is way too much flow and it costs way too much and it makes way too much noise.

HP: 1 HP
Speed: Single
Volts: 115/208 - 230 V
Amps: 13.2/6.2 - 6.6
Port Size: 2 in.
Service Factor: 1.25
1709737828347.png

Pentair Challenger CH 1 HP 115/230V Single Speed, UR Pump - INYOPools.com

Your source for Pentair pool pumps.
www.inyopools.com www.inyopools.com
 
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