Replace Single Speed pump with VS pump

[Kalvis]

I’m in a situation where I need to replace my pool pump.

What would people recommend for my pool (details in signature)? I see a lot of recommendations for the Pentair SuperFlo or IntelliFlo. But not sure on how to pick the right model and specs.

Honestly, I don’t even know what questions I need to answer to help get to the best answer.

Are there any features or capabilities for VS pumps that should be sure are included on the pump?

 

[kchinger]

Do you need to replace your wet end (pump) or just your motor? Or both?

 

[KDpoolguy]

The venerable Pentair Intelliflo 011018 is considered a drop-in-fix all-pump by most, and highly recommended. It’s a variable speed, but it’s a full 3hp pump but can be easily usable for your needs at a lower flow lock-out requirement. Some may recommend a 2-speed pump if you don’t have automation or don’t have a desire to perhaps add automation anyways. Automation or no, you can still get a VS pump. I had a Hayward Tristar VS at my old pool and actually loved the simplicity of it since it didn't have a automation. If you don’t have automation—By switching from single speed to VS, attached timers or switches that you may have used won’t be usable, hence why some recommend 2-speed pump to retain that ability.

• Do you have an automation system for your present pool?
• Do a search for your electrical utility for rebates on energy efficient pump replacements.

 

[Kalvis]

Both, the impeller, seals and motor.

 

[mknauss]

With a SWCG it is best to get a pump that has a built in relay so your SWCG can be sure to have the power removed to it when the pump is not running. Or, you will need to leave your SWCG on a timer so it is set to only get power when the pump is running.

 

[Kalvis]

• Do you have an automation system for your present pool?
• Do a search for your electrical utility for rebates on energy efficient pump replacements.

Thanks for the input. No, I don't currently have an automation system, but I'm likely to add one over time. Will probably stick with VS for that reason.

And yes, looks like my energy company has a $350 rebate for the recommended Pentair pumps. I'd say that goes a long way towards making this a no-brainer.

With a SWCG it is best to get a pump that has a built in relay so your SWCG can be sure to have the power removed to it when the pump is not running. Or, you will need to leave your SWCG on a timer so it is set to only get power when the pump is running.

Great point, thanks for making it. I'll take this into consideration.

 

[Jimrahbe]

K,

If you plan on automation, then there is only once choice.. The IntelliFlo pump can be run standalone, or be controlled by automation. The SuperFlo VS is a standalone pump, and cannot be easily controlled by automation.

Thanks,

Jim R.

 

[Oly]

Yup Pentair Intelliflo. If your area gets lightning storms consider a surge protector for the electronics on this unit.

 

[BowserB]

Here are some wattage readings from the Pentair Link2O app at various Intelliflo VSF pump speeds: 3450rpm=2506w; 2900rpm=1499w; 2000rpm=420w; 1700rpm=278w; 1300rpm=111w
Clearly running a variable speed pump longer at a lower speed saves a lot of electricity. I don't have a surge protector on the pump, but I do have a whole house surge protector installed with my standby generator. Comparing my electric usage before and after having the pool, I am fairly confident that the pool is costing between $30 and $40 a month in electricity, based on bottom line (after fees, taxes, delivery etc.) electric bills being in the range of 8.3 to 9.5 cents per kWh. I run my pump at 1800rpm for 18 hours a day 6:30am to midnight. At that speed, you have to be standing right next to the pump to hear it!