#3 Do not rinse lenses in tap water.
If you need to rinse your coated lenses, only use Tangible Clean, a compatible solution, or sterile saline. Do not use tap water, as it may wear away the coating.
Tap water also allows bacteria and harmful pathogens to attach to your contacts, which can cause eye infections. These infections may cause eye pain and may feel like there is a foreign body in the eye, and can be difficult to treat. To protect against infection, you should also use sterile saline if you need to rinse your contact lens case; do not use tap water.