Replacing a single speed pump

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S

shorembo

Silver Supporter
Jan 24, 2012
58
SW Florida
I'm probably going to need to replace the single speed pump I have. How would I go about figuring out what I would need for a replacement.

My specs are:
  • Inground 17K gal, outdoor uncaged crystalcrete (yr 2002)
  • 1 1/2 HP pump Hayward Super II pump
  • Hayward 1750C cartridge filter
  • Hayward SwimPure SWG
  • No autocleaning --- Southwest Florida so it runs all year
The cartridge filter and SWG are still working fine. I plan on talking to a few local pool service companies but want to have a little more info when I talk with them.

I was at a pool store and got a general quote for around $2K installed (setup, pvc switch, power hookup, etc.)
 
Whatever you do, get a variable speed pump. It will pay for itself. Even a 2 speed pump will save you a bunch of money.
If you decide VSP, get the largest VSP you can afford and will fit on your pad. The larger the VSP, the slower you can run and still move the same amount of water.
What is your budget for the pump?
What service do you have now for the pump? (115v or 230v?)
Can you also post pictures of your pad?
We can make some recommendations.
 
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Thanks for the response...

I have 230V service for the pump.

My budget is what I am trying to figure out. Things I would consider are:
1. I run the pump a lot. I'm in Southwest Florida and have the pool up all year.
2. I run the pump a lot... because there are days where I have to dump the skimmer (40 ft Oak near pool plus 2 other 40 ft trees along with a sea grape hedge). I don't know if the required leaf cleaning affects the type of usage of the VSP.
3. I've kept my pool equipment up for over 20 years with standard fixes (new pump motor, SWG cell replacements, SWG board fixes, etc.) so I haven't spent a lot. I'm ok with paying some money.
4. I do want to get something that will last and work for awhile trouble free. I'm not sure what I can expect from a VSP (5 years? 10 years? more?)
5. The $2000 off the cuff quote from the pool shop did not scare me.

pool.png

Here is the pad.
IMG_20250419_201938136.jpg
 
  • You can go the Calimar 3.0 HP route for $516, is hard to beat. Even if they belly up every 5 years, it will take 15 years to spend the same as a top of the line pentair. There are less distributors for the pumps and the parts. Lots of folks here have gone this route, with mixed but mostly positive results.
  • The waterway defender 2.7 is also a nice pump for about $1200. A bit better product and well supported.
  • Pentair Intelliflo3, with the I/O board is about~$1800 uninstalled. It is a beast and will last a long time. The benefit of this is that you really need a primary protection for the cell. Right now you only have a flow switch on the SWG. If the switch fails, and the pump stops, the gas created in the cell can explode...see link below, section 1.4. The other benefit this would give you is WiFi access.
  • It looks like you have hayward equipment. If you have local support for Hayward, there are good Hayward options too, the Triton VS900 and 950. They do not have the I/O board, and the cell would still need some form of protection (see section 1.4 below for options).
The benefit of a larger VSP is that it will move the same amount of water as a lower hp VSP, at lower RPMs and will be quieter, and use less energy. Most of us with VSPs run them 24/7 fairly low, 1100-1600 RPM or so. Benefit is that it makes chlorine all day, skims and filters all day, and at those speeds cost about $20 a month to run.

If I can spend your money, get the Intelliflo3 with the I/O board, wire in your cell and don't look back.

Are you going to DIY or have someone install. This may make a difference in your choice...you would likely want local support. In either case, before you buy, ask about warranty information. It varies, DIY to Professional Install.

See section 1.4 here:

SWG How It Works - Further Reading

www.troublefreepool.com www.troublefreepool.com
 
3hp...sorry. If you are going Pentair, get the 3HP for the $200 difference.

You can get the I/O board on either.

PN 011076 is the 3HP and includes the I/O board
 
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Not wanting to spend your money (well maybe😁), but if you are interested in learning, Florida pool builders are notorious for installing undersized filters. We recommend that you get the largest filter, of the type you want. You filter will work JUST FINE with the new VSP, but will require much more frequent cleaning. If you want to reduce your maintenance, get the largest cartridge filter you can afford and will fit on your pad. A Pentair, Clean & Clear Plus, 420 or 520, would require a cleaning Maaaaybe once or twice a year. The 175 is very small.

Waterway (in the 425 or 525) and the Pentair C&C plus filters (420 or 520) are really good filters.

If you want to set yourself up, the VSP and large carts will lower your costs and reduce maintenance.
 
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