Ick on equipment

How long can Ick survive on aquarium equipment such as a gravel cleaner?
I had used it the day before the visible signs of an outbreak and
haven't used it since treatment which has been about a six days, due for
a water change. All visible signs of ick on fish are gone now (I know
the ick is ever present), and I was wondering how long ick could last on
surfaces without that surface being wet or subject to deliberate
disinfection ie: left out to dry (no good environment or host = no ick?)?

TYIA,

SS