A Highland customer may be allowed a one-time credit for sewer charges on the initial fill up of a newly-constructed swimming pool, or if replacing a pool liner. In order to get such credit  for subsequent fillings, a customer must have a "deduction meter" installed, at the customer's expense. However, with some minor plumbing rearrangement, a customer can make full advantage of a deduction meter installation for all "outside" water usage (Car Washing, Lawn/Garden Watering, Filling/Topping-Off swimming pools, etc.). Please call our Office for further details.