Toilet tank filling up slowly

[Phil Smith]

Hello,

My tenant toilet has just started to fill up really slow, he has said it takes 20mins to fill the tank, what could be the issue?

He provided a short video that I have attached.

Would be good to know what to look for, or what parts to take when going to take a look.

Thank you good people!

 

[ShaunCorbs]

Common issue siamp fill valve either replace the washer or change the fill valve