Description
A chemical controller for swimming pools that monitors pH and automatically dispenses acid or other chemicals to maintain target water chemistry. It includes a tank-mounted pump and operates on 120/240 V, 50/60 Hz at 5 A. Designed for residential and commercial pool systems, it can function alone or integrate with Pentair automation and control equipment, and provides a Langelier Saturation Index calculation to indicate water balance.
Quick Answer: What Is the Pentair 522621?
The Pentair 522621 is a automatic chemical feeder: Pentair IntelliChem 65 gpd 120/240V 25 psi Chemistry Controller w/Acid Tank. It is brand new, ships in 1-2 business days, and is backed by the Pentair manufacturer warranty.
Pentair 522621 Specifications
| Brand | Pentair |
|---|---|
| Equipment Type | Automatic Chemical Feeder |
| Model Number | 522621 |
| Includes | Includes Chemical Controller and Acid Tank with Tank Mounted Pump |
| Product Line | Intellichem |
| UPC | 788379869311 |
Key Features
- Automatic pH monitoring and chemical dosing
- Tank-mounted pump for on-board chemical delivery
- Built-in Langelier Saturation Index calculation
- Flow sensor prevents dosing without system flow
- Programmable feed cycle and mix times
- Password-protected settings to prevent tampering
- Compatible with Pentair automation and Salt Chlorine systems
How It Works
Chemical feeders and controllers deliver sanitizer and pH adjusters consistently. Tab chlorinators and floaters dissolve tablets at a controlled rate, automatic feeders and peristaltic pumps meter liquid chemicals, and controllers measure ORP and pH to tell feeders when to run. Storage and containment products keep chemicals separated, contained and safe.
How to Choose the Right Automatic Chemical Feeder
- Size feeders to the pool volume and chemical demand.
- Confirm the chemical the feeder is rated for (trichlor tablets, liquid chlorine, acid).
- For controllers, check probe types, outputs and alarms needed for your health code.
- Choose containment sized for the containers you store.
If you are replacing an existing part, the fastest way to confirm compatibility is to match the brand and model number on the old equipment. Send us the model number or a photo of the label and our team will help confirm the 522621 is the right fit before you order.
Installation and Safety
Install inline chlorinators after the heater with a check valve to protect equipment. Never mix chemicals, and never put cal-hypo in a trichlor feeder; the reaction can be violent. Follow the chemical manufacturer's safety data sheet and local codes.
Maintenance Tips
- Inspect feeder lids, O-rings and tubing regularly.
- Calibrate pH and ORP probes on schedule.
- Store chemicals cool, dry, ventilated and separated by type.
- Replace worn peristaltic tubes promptly.
What's Included
This listing is for the Pentair 522621 as described in the specifications above. Plumbing, wiring, unions and accessories are not included unless they are listed in the product name or specifications.
Built for Homeowners, Pool Pros and Property Managers
- Homeowners: match your existing model number, then reach out if you want a second set of eyes on compatibility before you order.
- Pool service pros and builders: order quickly, track every shipment, and reorder common parts for your routes and builds.
- Property managers and commercial pools: standardize equipment across properties and plan replacements with help from our team.
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Frequently Asked Questions About the Pentair 522621
Can I use any tablets in my chlorinator?
Use only the chemical the feeder is rated for, usually trichlor tablets. Never mix chemical types.
Where should a chlorinator be installed?
After the filter and heater, with a check valve so concentrated chlorine cannot back up into equipment.
Do controllers replace testing?
No. Test water regularly to verify controller readings.
Is this the genuine Pentair part?
Yes. It is brand new Pentair equipment (model 522621) covered by the manufacturer warranty. Warranty terms vary by product and application; see the manufacturer documentation or ask our team.
