Are you still using the pool store to test? If so you could take the same water taken at the same time into the same pool store 3 times and get 3 different and contradictory results.
You *need* to do your own testing with one of the recommended test kits otherwise you will be throwing money after money with bad decisions due to bad data.
You *need* to do your own testing with one of the recommended test kits otherwise you will be throwing money after money with bad decisions due to bad data.
