Assuming you have proper coverage in your pool floor, it is possible to flow adjust your system. Each nozzle size has a different cleaning radius, and based on the hydraulics of your system, you can adjust the zones so they clean to their maximum potential. In-Floor Pool Parts will be happy to recommend the proper nozzle sizes to effectively adjust the flow of your pool. Please contact us via email at Customerservice@infloorpoolparts.com, and we will send you the proper forms to fill out.