Q: Is the orientation of the unit important? The plumbing I want to install it into is roughly horizontal but I would prefer that the head of the control unit was 90% from vertical

Asked by: Marc - 5/24/2019
A: No it's not important. The system can be oriented horizonal, vertically, or anywhere in between.
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Answer provided by: Administrator (5/24/2019)

Q: Is the circupool core 35 compatable with Pentair pool systems? We have the intelleflo pump and easy touch pool spa control system

Asked by: Gillian - 8/10/2019
A: Yes, the CORE-Series salt systems utilize a "flow switch" that lets it synchronize its operation with your programmable pump's run times.
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Answer provided by: Administrator (8/14/2019)

Q: ow much space is required below 2" pipe to fit cell body. Can't find drawing with distances.

Asked by: Chris - 2/7/2021
A: Chris, I would give yourself at least 5-6" under your PVC pipe to be safe.
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Answer provided by: Kyle (2/8/2021)

Q: do you need to shock treat a pool with this Unit? Should non-chlorine shock be used? How often?

Asked by: Gary Richard Irwin - 11/16/2020
A: With any properly-sized salt chlorinator, regular shock treatments should not be needed. The whole goal is to eliminate the need to buy and manually add chlorine & shock. Your pool remains compatible with any type of chemicals that a traditionally chlorinated pool would be.
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Answer provided by: Robert (11/17/2020)

Q: Do I need to install a check valve before the CORE35 to prevent superchlorinated water backflowing into my system when the pool pump is turned off?

Asked by: Mitch - 6/9/2021
A: Check valves are not typically required with salt systems, though it can't hurt. Check valves are often used with chlorine tablet dispensers because that can happen even when the pump stops, unlike salt systems.
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Answer provided by: Ben (6/10/2021)

Q: Do you need to connect to a timer or will it turn on automatically when the pool pump is running while connected to the 110v outlet?

Asked by: Victor - 7/8/2020
A: Thanks for that last answer. How long is the power cord?
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Answer provided by: Earl (7/16/2020)

Q: I just got the Core35 model. Can you leave the unit on even if the pool pump is not running since I don't have a timer?

Asked by: Ke Xu - 4/10/2021
A: This system's flow switch will activate/deactivate with the water flow. However if you can use a timer, it is ideal so you have redundancy. You could easily use an outdoor plug-in style timer if you plan to use a 110v outlet.
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Answer provided by: Chris (4/12/2021)

Q: Do you need to connect to a timer or will it turn on automatically when the pool pump is running while connected to the 110v outlet?

Asked by: Victor - 7/8/2020
A: You can plug it in and this system's flow switch will activate/deactivate with the water flow. However if you have an existing timer, its even better to use that in addition so you have redundancy. You could also use an outdoor plug-in style timer if you plan to use a 110v outlet.
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Answer provided by: Ryan (7/8/2020)

Q: can this unit be powered up 24/7, or does it need a timer/clock?

Asked by: Kris - 3/26/2021
A: The system can work either way, depending on how you run your pump. It has a built-in flow switch so it can activate the system when the water flow starts. It is also good to put it on the same circuit as the pump so they get turned on and off together.
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Answer provided by: Chris (3/29/2021)

Q: How can I get a pdf of the manual

Asked by: John-Andrew Kambanis - 4/20/2021
A: You can see the manual at the link below and you can also find this linked in the description on the product page.

https://www.circupool.com/assets/doc/CircuPool-CORE-Manual.pdf
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Answer provided by: Administrator (4/20/2021)

Q: I have a 13,000 gallon fiberglass pool. I was looking at your Core35, is this overkill? I would rather have it and not need it, than need it and not have it.

Asked by: Steve - 5/3/2021
A: The industry rule of thumb is using a salt chlorinator with a max capacity of at least 1.5x - 2x your pool size, so that is really the goal. You can always turn down your salt system or lower its run time, but if you need more sanitation power you can't turn it up after a certain point. You can see more sizing info here: https://www.circupool.com/5-Reasons-why-you-should-over-size-your-salt-system_ep_94-1.html
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Answer provided by: Jessica (5/5/2021)

Q: This says it can produce up to 1.4 lbs of chlorine per day. Would this be assuming it is running at 100% output for 24 hours? Just trying to figure out my run time and output settings. Last year I was using about a 1/2 pound to 3/4 pound of chlorine per day before I installed this salt cell

Asked by: Bob - 5/13/2021
A: The amount chlorine generated is rated in lbs /day and is not a direct or apple to apples comparison to manually add chlorine, as there are many forms and types of chlorine. To set your system, just choose an approximate setting, let it run normally did a day or two, then test the water for free chlorine, then adjust the system up or down accordingly. Usually after doing this a couple times you will have it dialed in to your pool's unique needs. You can also raise or lower the run time you give it
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Answer provided by: David (5/13/2021)

Q: How long is the power cord?

Asked by: Ted - 5/16/2021
A: The power cord it comes with is approximately 6' in length. A qualified individual can lengthen or shorten the pool equipment's wiring as needed.
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Answer provided by: Administrator (5/17/2021)

Q: How can I tell what my salinity level is on the Core35 unit?

Asked by: Debbie Thurner - 5/17/2021
A: This system will turn on the Low Salt light at about 2400ppm. This would be the point at which you would simply add more salt to the pool.
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Answer provided by: Dave (5/17/2021)

Q: I'm installing a 16x32 inground pool, approx 30,000 gallons. Instead of a chlorine pool, I'd like to make it salt water and looking at this unit. Will this suffice my pool size. No pump, filter are installed yet so now is the time for me to make this decision.

Asked by: Dre' - 5/17/2021
A: Based on that pool size, you would want a larger model, such as the CORE55.

You can see a little more information about sizing here.
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Answer provided by: Administrator (5/18/2021)

Q: What is the minimum GPM flow rate required for the Core series?

Asked by: randy - 5/19/2021
A: Salt chlorinators typically need at least 20-30 GPM, but also depends on other factors that are unique to your pool like pipe diameter and equipment configuration. They just need to have enough water moving so that 1) the flow switch gets triggered, and 2) the water flow is able to prevent any air or gas pockets from forming. It is very easy to check that this is working, and is not commonly an issue.
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Answer provided by: Dan (5/20/2021)

Q: what are the connection measurements, ie., length, dia. Where does the salt supply go and how long does it last.

Asked by: john - 5/21/2021
A: You'll cut a 7" gap in your PVC plumbing where you'll install this system. There is no salt supply; you'll add salt directly to the pool when you initially install the system, and then the salt is continually recycled and is not consumed.
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Answer provided by: Jorge (5/21/2021)

Q: whats the difference between the core 35 and rj series?

Asked by: Dale Tomlinson - 6/1/2021
A: The CORE models are extremely compact and easy to install. The RJ will offer more in-depth controls and a lower price point.
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Answer provided by: Ronald (6/1/2021)

Q: I see the flow switch is integrated into the replaceable cell. Can it be repaired without replacing the entire cell? It seems flow switches are the weakest link with Pentair. While I like this system, I'm a little apprehensive.

Asked by: Frank - 6/21/2021
A: That's a great question, Frank. The flow switch and cell are not separable, however replacing cells because of a bad flow switch is not a known issue - that would be extremely unlikely based on prior experience.
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Answer provided by: Ben (6/21/2021)

Q: How important to place Core35 after the heater? The heater is about 8 feet from the filter but all the plumbing is underground and the wiring will be a longer distance than desired. This will cause me lots of work on new plumbing. I can easily place it between the filter (pool return) and the heater (which we rarely use in Florida). It this acceptable?

Asked by: don - 8/1/2021
A: The heater manufacturer would be the ultimate answer, but you typically would not want to put any type of chlorination device before a heater.
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Answer provided by: Bill (8/2/2021)

Q: Core35 warranty 8 year limited. What is covered?

Asked by: Thomas Whitlock - 10/6/2021
A: You can see the system's warranty information in the User Manual posted in the product description area on the product page. Like all salt chlorinators, the warranty takes into account that the salt cell is a consumable part.
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Answer provided by: Administrator (10/6/2021)

Q: The only power source available is 240 volt. Can the core 35 be rewired for a 240 volt connection?

Asked by: ray cruce - 11/9/2021
A: No need, it is a dual-voltage unit that automatically converts either 110/220V when connected.
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Answer provided by: Administrator (11/9/2021)

Q: I have a 21600 gallons inground pool , What would be the best suitable model salt chlorine generator?

Asked by: Norbert Rios - 2/15/2022
A: Norbert, in this model line you would likely want at least the CORE35 if not the CORE55. In general, bigger is better; you can see more sizing information at the link below.

https://www.circupool.com/5-Reasons-why-you-should-over-size-your-salt-system_ep_94-1.html
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Answer provided by: Kent (2/15/2022)

Q: Can Core35 be mounted horizontally instead of vertically? Do you have dimensions for the Core35?

Asked by: Mike - 3/28/2022
No Answers have been submitted yet.

Q: "Roughly" how long is the power wire? If it's short, is it easy to wire in a new one? "Roughly" how many amps would one think the 35k unit draws? I'm deciding on hardwiring it to my pump timer or a separate GFI outlet that runs off the timer.

Asked by: Tom B - 4/1/2022
A: The power wire is roughly 5', and you can pretty easily wire in a new one if desired. It uses about 2A at 240V. It can work either way that you mention.
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Answer provided by: Jacob (4/6/2022)

Q: Hello, I'd like to connect a CORE35 onto 1.5 inch pvc pipe. Do I need the 1.5" reducer ? Just want to double check. Thanks, Dave

Asked by: Dave - 5/10/2022
A: Yes, you can use reducer bushings for 1.5" plumbing
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Answer provided by: Bill (5/11/2022)

Q: Is the warranty for 8 years even if I install it the owner and it’s large enough for 80 thousand litres pooland brand new unit and will I receive it and is in Canadian money this numbe thanks

Asked by: Eli - 5/15/2022
A: There is no warranty penalty for self-installations
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Answer provided by: Dave (5/16/2022)

Q: I have a variable speed pump. The question is, when I am at the low speed I suspect the flow will not be enough for the flow switch to read so it will not produce salt. Is this correct? Will this harm the system? If I purchase this my plan is to set the pump speeds to get the chlorine level I need. Pool is 15000 gallons

Asked by: Eric - 5/19/2022
A: A salt system only needs a pretty minimal amount of flow, in many cases in the 20-30 gpm range. You would want to simply check whether on your lowest speed the salt system 1) stays filled with water, and 2) the flow switch gets triggered. Since the cell is clear this is very easy to check. If the flow switch doesn't get triggered, it simply deactivates the system until normal flow resumes. Other than that, the pump speeds do not affect the chlorine level you get. This is achieved primarily through the "chlorine output" setting on the salt system, as well as the run time you provide it.
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Answer provided by: Kent (5/20/2022)

Q: If I currently have a Hayward Aquarite, do I need the adapter or will the Core35 fit where my cell is now?

Asked by: Wanda Tisdale - 5/29/2022
A: Based on your description, you'd want the adapter kit that is available separately so that you could use your existing fittings.
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Answer provided by: Ronald (5/29/2022)

Q: Hello, I have a 6,000 gal in-ground pool in the Florida Keys. What is the best system and size for my pool. thank you. Jose

Asked by: Jose Munoz - 6/13/2022
A: Jose, for that size pool you could likely use any of our model lines. You can see a model comparison here:
https://www.circupool.com/Compare-Brands_ep_59-1.html

You can see more about system sizing here:
https://www.circupool.com/5-Reasons-why-you-should-over-size-your-salt-system_ep_94-1.html
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Answer provided by: Terry (6/13/2022)

Q: what size pipe is used for the inlet and outlet and is it PVC?

Asked by: Scott - 6/20/2022
A: This model has slip fittings that accept 2" PVC pipe. If you have 1.5" plumbing, you can use off-the-shelf PVC reducers.
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Answer provided by: Administrator (6/20/2022)

Q: My old salt system lasted 19 years with the original cell, the system periodically reverse its polarity to self clean the cell. Does the CORE 35 do this? And if it doesn't why not?

Asked by: Joseph Rossi - 6/27/2022
A: Yes, the CORE-Series, like all of our salt chlorine generators, use reverse-polarity to self-clean the cell.
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Answer provided by: Staff (6/28/2022)

Q: Do you have a comparison chart for different models of salt chlorine generators? What is the difference between the RJ30 and Core35?

Asked by: Mike Armagost - 6/28/2022
A:

Yes, you can see a complete comparison chart here: https://www.circupool.com/Compare-Brands_ep_59-1.html


One way to simplify it is: the CORE is the premium easy-to-install, easy-to-use salt chlorine generator. The RJ is the latest generation of our original model that offers the most options for control and capacity. We are happy to walk you through all the details and pick the best option for your pool if you speak with our product experts at 888-206-9938

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Answer provided by: Administrator (6/28/2022)

Q: What is the wording for the limited warranty * ?

Asked by: Bob - 6/28/2022
A: Salt systems have limited warranties because they reflect the fact that the salt cell is a consumable part. This typically means there is proration or other limitations to the warranty. You can see the warranty for the product you are looking at in the manual, which is linked in the product description on the product page.
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Answer provided by: Steve (6/30/2022)

Q: Can we get an adapter kit for a pentair ic 40

Asked by: ROBERT HOTT - 7/23/2022
A: If you are looking to adapt a system to plumbing unions for an existing IC40, you might consider the EDGE-Series and its available adapter kit.
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Answer provided by: Administrator (7/25/2022)

Q: i HAVE A 25,000 GAL POOL WILL THE CORE35 BE SUFFICIENT?

Asked by: ROBERT HOTT - 7/23/2022
A: It may be depending on your use and climate. The industry rule of thumb is to get a salt chlorinator with 1.5x to 2x the capacity of your actual pool size. You can see more about that here: https://www.circupool.com/5-Reasons-why-you-should-over-size-your-salt-system_ep_94-1.html
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Answer provided by: Administrator (7/25/2022)

Q: Does the CircuPool Core 35 come with a sacrificial anode?

Asked by: Dave - 7/27/2022
A: No, this is not a required component.
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Answer provided by: Craig (7/27/2022)

Q: We're thinking of replacing out Hayward with this system. Can we reply on the flow switch to turn the chlorinator on and off? The pump is always powered, but has an internal controller as well as variable speed. We can have reduced flow as well as no flow during parts of the day. Will this hurt your system? Thank you in advance.

Asked by: Tatiana G - 8/5/2022
A: You can run a salt system like that, but especially if you have long run times you might benefit by putting the salt system on a timer that runs it for less within the pump's run times. With this model, it could be something very simple like this: https://www.circupool.com/Heavy-Duty-Outdoor-Programmable-Timer_p_164.html
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Answer provided by: Rick (8/8/2022)

Q: when there is no electricity, will the device return to work after the power is restored?

Asked by: Piotr - 8/11/2022
A: Yes, this is the way that salt chlorinators are designed to work.
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Answer provided by: Administrator (8/12/2022)

Q: Is there a replacement for the cell when it finally dies, or do you have to buy the entire system? I am not seeing one on the site.

Asked by: Ray Echtner - 8/14/2022
A: Absolutely, replacing the cell is definitely what you want to do. You can find that in the navigation under Replacement Parts >> Replacement Cells >> CORE Series or directly at this link: https://www.circupool.com/CORE-Series-Replacement-Cells_c_53.html
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Answer provided by: Administrator (8/15/2022)

Q: Can this chlorinator be added before the filter after the pump ?The existing pool system is very constrained where the water returns to the pool after the filter

Asked by: Willem Swanepoel - 8/17/2022
A: The industry standard for all chlorination devices is to be installed after the filter. If for some reason there is an exception, you may want to contact your filter's manufacturer for confirmation, but I wouldn't expect so.
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Answer provided by: Greg (8/17/2022)