The trick to getting gleaming gutters can vary based on the material of your gutters. Aluminum gutters can often be restored to pristine condition by using a cloth to scrub them with a solution consisting of 1 cup of vinegar and 1 cup of water. Vinyl gutters can be whitened using dish soap and water. For deeply stained vinyl gutters, adding bleach with water and dish soap may help to remove black streaks. Many retailers sell premixed gutter sprays. Applying cleaning solutions to dry gutters before rinsing can help cleaners attach to dirt and grime for easier removal.

Icicles don't necessarily mean your gutters are clogged or bad, but they can indicate an underlying issue. While clogged gutters can cause icicles to form, the problem could also be an ice dam on your roof from poor insulation. In that case, melting snow can refreeze in the gutter even without a clog. Regardless of the cause, the weight of the ice can damage your gutters or even rip them completely off the house. If you are unsure of the underlying problem, it's best to call a roofing company to assess the issue and implement a permanent solution.

If your gutters get overwhelmed every time it rains, adding an extra downspout is a solution. First, you'll need to decide where to add the downspout. If your current setup only has a single downspout, one option is to place a new one at the opposite end of the gutter. If you already have a downspout at each end, adding a third one in the middle can help to lighten the load. 

You can hire a professional to add a downspout yourself by cutting into the existing gutter and attaching the necessary parts, such as an outlet and brackets.

Yes, caulking or sealing your vinyl gutters is a good way to help prevent gutter leaks. When you’re installing gutters, it’s important to overlap the sections to help avoid issues like leaks or drips, but they can still happen. In this case, adding caulk can help. Make sure to use a caulk designed for multiple surfaces, like a silicone-based caulk. You can also purchase a gutter sealant as well, which is specifically designed for this purpose.