My wife started a swimming lesson and water aerobics business a few years ago when she was laid off from her job. As she began to grow, she and I began to care for the pools that she works out of. We began to build a reputation and have now gotten the opportunity to break into the pool management business. We have had 3 pools contact us, asking us to put in bids. We have been working 3 pools, two indoor and one outdoor. We have not had to buy chemicals. We are confident in most of the bid (from my construction background), but have been stumped on how to make a reasonable bid on chemicals / how to predict a high end figure on how much chemicals a certain pool will use. Is there a formula (gallons, bath load, sunlight, avg temp, etc)? Are there any rules of thumbs? Thank you for any help.
Located in Northern VA, season runs from Mem Day to Lab Day, average temp around 90.