iSpring FA15 Alkaline Inline Water Filter Cartridge, 10” x 2” with 1/4” Quick Connect, NSF Certified, Add-on for RO Systems, Balances pH & Restores Minerals, 3-Layer Replacement Filter

Awful water taste (bad fish) i flushed my whole system like 5 times and every time the smell goes after flushing and comes back after water settles for a few minutes in the filter . I’ve noticed a couple of reviews here mentioning the same issue, it would be great if the vendor can explain what’s happening here and whether its a product defect or something.I had to throw this 3 days after hours and hours of flushing/wasting water

This filter gives an horrible after taste, tastes like plastic and not pleasant. Have wanted a few weeks to see if it goes away and run many liters of water through it but no improvement.