Pentair IntelliChem 4-Gallon Liquid Chlorine Container (Tank Only, No Pump) | 521397
The Pentair 521397 is a replacement 4-gallon liquid chlorine feed container designed for use with Pentair IntelliChem chemical automation systems and other compatible chemical feed setups that draw from an external tank. This is the tank-only version (no pump included), intended for installations that use a separate external chemical feed pump.
Key Features
- 4-gallon capacity container for liquid chlorine (sodium hypochlorite).
- Tank only (no pump): for systems that use a separate external peristaltic pump or chemical feed pump.
- Designed for IntelliChem: common replacement chlorine container for IntelliChem chemical controller installations.
- Includes hookup components such as tubing and installation adapters (as supplied with the container kit).
- Durable construction for equipment-pad chemical storage and dosing applications.
Compatibility
- Primary use: Pentair IntelliChem chemical controller systems that specify part 521397 for the chlorine container.
- Also usable with: many third-party chemical feed systems that accept a 4-gallon external tank (verify your pump pickup tubing/fittings).
- Important: This container does not include a dosing pump. If you need a tank with a tank-mounted pump, choose the pump-mounted container assembly instead.
What’s Included
- (1) 4-gallon chlorine container
- Connection tubing and adapters (as packaged)
Common Reasons to Replace
- Cracked container, leaking fittings, or damaged lid/seal
- UV/sun damage that makes the tank brittle
- Rebuilding a chemical feed system and replacing worn chemical-storage components
- Odor/fume leakage due to a compromised cap or fitting area
Installation Notes
- Place the container on a stable, level surface in a well-ventilated area and secure it to prevent tipping.
- Route suction tubing to your external pump with smooth bends and avoid kinks or pinch points.
- Use a proper injection check valve at the plumbing injection point to reduce backflow and improve dosing consistency.
- Always follow chemical handling guidance and local code requirements for installation and storage.
Related Products
- Search Aqua Pool Supply for 521397
- IntelliChem Chlorine Tank with Tank-Mounted Pump (522473)
- IntelliChem Acid Tank (Tank Only) (521378)
- IntelliChem Acid Tank with Tank-Mounted Pump (522472)
- Chemical Injection Check Valve (522513Z)
- 1/4″ Chemical Feed Tubing
- Pentair IntelliChem Parts
Maintenance Tips
- Keep the container out of direct sun and excessive heat when possible to help reduce chlorine degradation and extend tank life.
- Inspect tubing for brittleness, cracks, or salt/chemical crystallization and replace as needed.
- Check for air leaks on the suction line (loose fittings can cause weak or inconsistent dosing).
- Rinse any drips/spills promptly and keep the container area clean to reduce corrosion of nearby equipment.
