How do we verbs our pool? We just bought a house next to an inground pool. The water...

We just bought a house next to an inground pool. The water within our pool seems fine (nice an clear, no odors) but the wall of the pool looks discolored and nearby is "crude" which looks like mold/mildew around the joint etc. How do we clean the surface without risk?
I only just bought a 100% polyester?
Answers:    There is a chemical you can buy that is undamaging to use while you are in the sea. You buy that chemical which any pool store should carry and after a scrub brush. Hop in the pool and scrub a dub dub
How do I verbs the stove top?
use the pole, if one come with the house, and put the all-embracing head brush, broom on it scrub terribly hard, don't nose-dive in. when your done backwash the filter, shock the marine, wait till the wet is clear again. backwash the filter again and test the sea. balance the hose chemicals as needed.