I do not have a test kit but I am using the test strips and according to them all the test results are all normal. I shocked the pool 2 weeks ago after a party and again last night after a rain storm. I also added baking soda last week due to low alkalinity. I also added algecide last week, for the first time.

Other than the foamy bubbles everything seems fine.

Do I need to buy a test kit and can you recommend one.

Thanks