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Pentair 178563 – Tank Bottom Assembly (Almond, 100 sq ft / 200 sq ft Filters)
Product Overview
The Pentair 178563 is a durable replacement tank bottom assembly designed for use with select Pentair cartridge and D.E. pool filters. Featuring an almond-colored finish, it serves as the lower structural base of the filter tank, supporting internal media and ensuring proper water flow and sealing.
Key Features
- OEM replacement base for Pentair Clean & Clear®, Predator®, Warrior® and EasyClean® filter systems.
- Constructed from heavy-duty, chemical-resistant materials to withstand pool operating conditions.
- Compatible with filters of 100 sq ft capacity (and compatible 200 sq ft systems) ensuring proper fit and performance.
- Almond finish matches original equipment coloring for seamless integration.
Technical Specifications
- Part Number: 178563
- Color: Almond
- Compatible Filter Size: 100 sq ft (and models referenced for 200 sq ft)
- Application: Replacement tank bottom for select Pentair pool filters
Applications & Compatibility
This tank bottom assembly fits Pentair pool filter models including Clean & Clear, Predator, Warrior and EasyClean systems where the original base has cracked, leaked or failed. Before purchasing, verify your filter’s model, size and year of manufacture to ensure compatibility with part 178563.
Installation Instructions
- Shut off pump and relieve pressure in the filter system before servicing.
- Drain the filter tank if needed and remove cartridges or grids to access the base.
- Remove the old tank bottom assembly, clean and inspect sealing surfaces for damage.
- Position the new 178563 tank bottom, ensure proper alignment, install new hardware and media as required.
- Reassemble the filter tank, restore circulation and inspect for leaks or abnormal pressure when first operating.
Troubleshooting
- Leak at tank seam: Check that the assembly is seated properly, the gasket is intact, and bolts are torqued evenly.
- Excessive pressure drop: Verify cartridges/grids are installed correctly, media is clean and tank bottom is secure.
- Cracking or warping of base: Ensure the replacement is correct part 178563 and that the filter’s support is level and stable.
Maintenance Tip
Inspect the filter tank bottom annually for signs of wear, cracking or leaking—especially if the system has experienced freezing or heavy seasonal use. Replacing with the 178563 at first sign of damage helps protect the filter integrity, extends media life and ensures uninterrupted pool operation.
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