Have a 80 gallon with a DIY sump, 20 gallon high tank. The wife does not like the noise that the water makes coming down from the overflow and passing through the filter and bio balls. any recommendation as to how to quiet the "waterfall" noise? Thanks.
If the noise is coming from the overflow, the durso standpipe will fix it. If the noise is from the trickling water over the bio balls, you can get rid of the bio balls and plumb the water so it exits an inch or two below the sump's water level.