The Pentair 522621 IntelliChem Controller with Acid Tank & Tank-Mounted Pump is a fully automated water chemistry management system designed to maintain precise pool water balance with minimal manual intervention. This advanced system continuously monitors pH and ORP (Oxidation-Reduction Potential) levels and automatically adjusts chemical dosing to ensure optimal sanitizer efficiency and swimmer comfort.

Ideal for residential and light commercial pools, the IntelliChem system helps prevent common water issues such as cloudy water, algae growth, scaling, and corrosion. The included acid storage tank and tank-mounted feed pump allow for automated acid dosing, making the system highly efficient and convenient. When integrated with compatible automation systems, IntelliChem offers centralized monitoring and enhanced control for a complete pool management solution.

By maintaining balanced water chemistry automatically, the IntelliChem Controller reduces chemical waste, extends equipment life, and ensures consistently safe water conditions.

Pentair 522621 IntelliChem Controller with Acid Tank & Tank-Mounted Pump Compatibility

• Compatible with Pentair IntelliTouch®, EasyTouch®, and IntelliCenter® Automation Systems
• Designed for residential and light commercial pools
• Works with liquid chlorine or bromine sanitation systems
• Suitable for use with Pentair IntelliChlor® Salt Chlorine Generators
• Integrates with compatible pool pumps, heaters, and filtration systems
• Designed for pools requiring automated pH and ORP chemical monitoring

Key Features

• Supplied under part number 522621 for exact-match ordering.
• Match horsepower, service factor and voltage to your plumbing and circuit.
• Ships from our US warehouse with tracking on dispatch.

Specifications

• Brand: Pentair
• Manufacturer part number: 522621
• Category: Pool Pumps
• Condition: New
• UPC / GTIN: 0788379869311
• Shipping weight: 28 lb

Frequently Asked Questions

What part number is this pool pump?

This item is supplied under part number 522621. Match that number against your equipment's parts diagram before ordering.

How do I choose the right horsepower?

Match the horsepower and service factor to your existing pump, and check that your filter's design flow rate can handle it. An oversized pump pushes water through the filter too fast and reduces filtration quality.

Is a variable speed pump worth it?

Variable speed pumps typically cut pump energy use by 50 to 80 percent versus single speed, because running longer at low RPM moves the same water for far less power. Several US states now mandate them for replacements above a certain horsepower.

Will this pump fit my existing plumbing?

Check the suction and discharge port sizes and the distance between the pump's mounting feet. Union fittings on most modern pumps allow some adjustment, but a different footprint may need re-plumbing.

Does California Title 20 affect which pump I can buy?

California restricts the sale of single speed replacement pumps above 1 total horsepower, so most residential replacements there must be variable speed. Similar rules apply in several other states.

How do I confirm this part fits my equipment?

Check the part number stamped on the component you are replacing, or find it on the parts schematic in your owner's manual. If the number differs or is unreadable, send us your equipment model and serial number and we will verify fitment before you order.

How quickly does this ship?

In-stock items ship from our US warehouse on business days. You will receive tracking by email once the order leaves the warehouse.

Can I return it if I ordered the wrong part?

Unopened, uninstalled items can be returned within 30 days. Equipment that has been installed or plumbed cannot be returned, so confirm fitment before installation.

Is this covered by a warranty?

Manufacturer warranty terms vary by brand and product. Warranty claims generally require proof of purchase and, on installed equipment, evidence of professional installation.