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.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
