The hangers are the accessories that secure the gutter to the building's fascia plate. If the gutter is not angled properly, adjust the hangers to achieve the proper slope. This can be done by loosening the screws that hold the hanger to the fascia plate and repositioning the hanger so that the spout is properly angled. Tighten the screws to fix the hanger instead.
Repeat this process along the entire length of the gutter, adjusting the hangers as needed to achieve the proper slope. So I'm trying to see if I can reasonably redirect the flow of the gutters in my backyard. They are currently divided between two sides. The right side doesn't really absorb much water into the roof. The left side yes, but it falls directly into a mulch bed and makes a mess.
Corroded gutters can also cause water to overflow, as corrosion can cause gutters to lose their shape and inclination. If you have verified that your gutters and downspouts are clean, but you still feel that water is overflowing through the gutters, standing water or overflowing through the end caps, the gutter may need to be tilted again. One of the telltale signs that a gutter is not properly angled is when water overflows directly onto the end cover of the gutter. Start by inspecting the gutter system from the ground, looking for signs of overflow, such as water running down the sides of the gutter or accumulating in low spots.
