I'm moving into my new house at the end of June and have my new liner going in around the same time. I'm going to order my test kits now so i have it. I'm going to order the tf-pro with smartstir and xl option. Is that a good start? Next question is the filter and pump haven't been run since summer of 2020. I was thinking about replacing all the o-rings ans gaskets in them. Would that be smart to do? 3rd question. Once fill it will be new water with no chemicals. I'm not sure how to go about getting chemicals in and balanced and or what order to balance it. Would love some help.