Unless you clean the hoses and pipes or whatever on a daily basis too, its not worth it.
chams don't usually drink standing/running water.
they prefer drops of water off of leaves.
if a cricket were to die in the water, then your cham eats it, it could get sick.
if your cham, or a bug, were to poop in the water, then drink/ eat the bug, it could get sick.
there is no reason to risk it.
just hand mist, use a dripper, or buy an auto mist system for watering purposes.