Whether you need roof or ground installation, you need to ensure that the solar panels are strategically positioned to capture the maximum sunlight. Southern-facing orientation (azimuth) is essential to optimize sun exposure and minimize shading throughout the day to improve system performance. The angle of inclination has a significant role, and a general rule of thumb is to match it with the summer equinox for maximum pool heating. https://www.solartubs.com/solar-pool-heating.html