Clip Test Blues

[NPBob]

Just performed a clip test on my year old Eco-Pro fixer.
Film (Tri-X) did not clear after 6 minutes.

Opened a brand new Eco-Pro fixer (just purchased from B&H).
Film still unchanged after 5 minutes.

Has anyone had this experience?
Could a gallon of fixer go bad if the seller has it for too long in stock?
Perhaps Eco-Pro is a slower seller than other brands?

Would hate to throw it out.

 

[compur]

The film clip you're using to test is from undeveloped film, right?

 

[NPBob]

Thank you for the response compur. Wound up getting an answer in a different forum. What happened was I originally used the Legacy Eco-Pro fixer STRAIGHT for the clip test instead of using it as I always do for regular fixing (1:4). Apparently, without the addition of the water, Legacy Eco-Pro will not clear film. Re-did the clip test using the Legacy at 1:4. Worked like a charm! Thank you once again! Bob