My university has been using teh same scuba gear for their pool dives and ocean dives.
They also have a rack to 3mm suits which each student used for the pool dives.
I would say that the gear is bare mininum, 3 years old.
It goes through rescue, advance, and basic OW for 3 sessions a year,
10wks each session combined between the 3 classes. Roughly 36 combined students total each year, and used in the pool twice a week consistently until the 9th week of each session (then it's to the ocean for Basic).
The rinse buckets consist of 2 garbage cans that become filthy after around 5 BC dunkings, and believe me plenty more go in after.
All are still in peak, working condition though. There is fading; think black T-shirt after running it in the wash for a year (w/o color saving detergent).
So, yes chlorine will fade your stuff, it will discolor your clear mask, and if there is any chrome brushing off your reg, it will exacerbate this.
Give your gear a fresh rinse after every "dive" and it should be fine.