Numerous studies reveal that gnats in sink drain are attracted to the organic subject obtaining in drains. Food scraps, soap residue, and even bits of oil combine to create a perfect breeding environment. Study from residential washing associations suggests that ranking water in pipes enables gnat eggs to hatch and larvae to survive. Based on pest tendencies described in 2023, strain gnats (commonly named strain flies) spike in hotter weeks, but infestations may arise year-round.