Power washing concrete around pool

Apr 19, 2017
41
Hillsborough New Jersey
Pool Size
27000
Surface
Vinyl
Chlorine
Liquid Chlorine
I want to get the concrete around my inground pool power washed but I’m afraid of the use of the detergent running off into the pool and what it will do to my perfectly balanced pool water? It’s been washed once already without the detergent but the concrete still has black stubborn stains that didn’t come out. Is this a reasonable concern, what options can you all offer. Or am I being silly to worry about a little deck soap getting in the pool. Plenty of debris blows off into it that I have to vac out after power washing so I’m assuming the detergent will get in also.