white things turning soft yellow

[engrav]

Deep drain cover, skimmer floats, skimmer baskets, pump basket, etc were white when new. After 1.5 years they have a yellow tinge, does not wash/brush off. Not too bad really but is there.

Water clear, chems fine as per you guys. Tho there was one algae bloom that cleared with 72hr slam.

Is this how things go in pools over time? Or should white drain cover white skimmer floats white skimmer baskets white pump basket stay white forever?

thank you

 

[woodyp]

(Mine are yellowing). 4 years

 

[engrav]

(Mine are yellowing). 4 years

cool, misery loves company, will then consider it a beautiful patina

 

[duraleigh]

After 9 years, my patina is turning kinda brown!

 

[JamesW]

Probably iron, which is almost unavoidable.