Hayward SPX4000TS Strainer Cover T-Seal

What This Part Is Used For
The Hayward SPX4000TS is a strainer cover T-seal used on compatible Hayward pump strainer lids. It seals the lid to the strainer housing so the pump can pull suction and maintain prime. This seal sits at the pump basket lid connection point.

Why This Part Matters
When a lid seal fails, the pump pulls air and you see bubbles under the lid along with reduced flow. Suction air leaks can cause a pump to lose prime, create noisy operation, and trigger flow related faults on heaters, cleaners, and chlorination systems. Replacing the correct T-seal restores a tight lid seal and stabilizes circulation. This is a common fix during spring startup or after repeated basket cleanings.

Key Features and Specifications

• Manufacturer part number: SPX4000TS
• Strainer cover T-seal for compatible Hayward pump lids
• Seals lid to strainer housing to prevent suction air leaks
• Helps maintain prime and consistent circulation
• Common replacement during routine pump lid service

Installation and Fitment Guidance
Turn off the pump and open the lid only when the system is fully off. Clean the sealing surfaces and install the T-seal so it sits evenly without twisting. Confirm by manufacturer part number before ordering.

About the Hayward Brand
Hayward builds an integrated pool equipment ecosystem including pumps, filters, heaters, automation controls, cleaners, chlorination systems, and service parts. Their pumps are widely installed on residential pads and rely on tight suction sealing for proper performance. Keeping lid seals fresh is one of the simplest ways to prevent prime issues and low flow complaints. Hayward replacement parts are widely supported across the pool industry.

Common Service Context
Techs typically replace T-seals when a pump won’t hold prime, the lid shows bubbles, or the system surges with air after basket cleanings. It is often identified when the old seal is flattened or no longer stays seated in the lid.