2 clean the joints replace the gaskets.
Fixing leaky rain gutters.
You may need to remove other gutter or downspout sections near the leaky joint first.
Remove any screws or connecting hardware at the joint and then disassemble the leaking portion of the downspout.
First check for signs of standing water and sagging.
Over time rain gutters often start to pull away from the roof allowing water to drip over the gutter sides or between the gutters and the walls.
Apply plastic roofing cement over small holes.
Adjust or add gutter hangers as needed see more about hangers below.
Bend the strip to fit and embed the flashing in the cement.
How to fix leaking rain gutters.
Time after time we see the failed efforts of well intentioned diy ers head up the ladder and attempt to silicone and spray their way to success.
However more often then not weeks or even days later the leak returns to the befuddlement of the home owner.
If the holes are larger than nail holes use tin snips to cut a strip of flashing the same amterial as the gutter wide enough to fill the area.
Feather the roofing cement out on the surrounding area to flatten any steep edges.
Tighten up loose gutters.