Chemical service is typically cheaper than full service but only includes the ongoing maintenance of pool chemical levels. This service is performed in person and chemical levels are adjusted by a Swimly   certified pool service technician. For customers who don't want to deal with the hassles of storing chemicals at home or waiting in line at a pool store to test chemical levels, only to end up spending nearly the same amount as what we charge to do it for you, this service may be a good option.