Re: Noisy Gutter Drain Pipes...Can I quiet them?
There's no way to completely quiet them, but you can reduce the noise by angling them a little so that the water is directed down the side of the conduit instead of dropping from the roof eave to the ground. Another method is to remove the downspout altogether and hang a chain for the water to run down instead of the conduit pipe, though this isn't something that I'd recommend for a number of reasons.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!