Update: I just finished repairing my plumming job by moving the flow meter to the front of the swg and adding a jandy valve in front of the filter like others recommended. Last week the pool service cleaned pool and I tested water again for pH and it was over 8.2 again. When I called them and told them I needed 7.2 they told me it was 7.2 so I tested again using the TFP kit. Again very pink pH above 8.2. When I brought this to their attention they told me I was wrong and they could not satisfy me and resigned so now I am really on my own except the people on this site. So I have not ascorbitized my pool yet (new word). I know I need to lower the pH.
Which method is best: Muriatic acid or ? How much to bring 8.2 to 7.2
Also I need to run a rose 100 feet to sewer from sump pump. I understand it should be a garden hose. What width is best?
Can I run hose 10 feet and then hook to my 2 inch blue back wash hose? I am trying to reduce resistence to get the job done sooner.