Do you have any sort of visitor pass, daily or weekly rate for non-residents?

For a day pass it'll be $20 for an adult, $5 for a teenager, and $3 for a child. A week pass is $50 and a single month pass is $70. Make sure you bring your ID.

If you're walking in right off the street and do not I have a friend that has a membership, I think they charge a flat rate of $20 a day for an adult

You get an allotment of visitor passes every year if you have a membership.