Hi, we're in the design phase for a backyard pool. The pool will be about 50,000 gallons and have a 25 meter lap lane; it will be shaped like a 7. We have not interviewed any pool construction companies yet; I am thinking about selecting a constructor based on recommendations from system contractors (automatic pool covers, chemical systems, solar heaters, etc.) instead of Yelp reviews.
I have chlorine sensitivity due to years of competitive swimming and working with halogens as a chemical engineer, so I am interested in minimizing the use of halogens in the pool. We are in a Zone 7b area and get a few nights per year of freezing temperatures, but I hope to be able to use the pool for lap swims almost year round.
I just learned about this site and so far it looks really good.
I have chlorine sensitivity due to years of competitive swimming and working with halogens as a chemical engineer, so I am interested in minimizing the use of halogens in the pool. We are in a Zone 7b area and get a few nights per year of freezing temperatures, but I hope to be able to use the pool for lap swims almost year round.
I just learned about this site and so far it looks really good.
We have a wealth of information here to help you with chemistry, construction, and equipment maintenance. I invite you to read the link below regarding your concerns for chlorine sensitivity. Here at TFP we employ a careful balance of FC-to-CYA ratio as noted on our 
