Hi , I have a 150 gallon tank with dual overflows and a aga filtration system . My sump sounds like waves crashing on the beach it is also causing leaks below . These leaks if let go will cause the stand to rot away so I could really use some advice. Return pump is rated at 1590 gph with a 4 foot head piped in flex line. returns are standard 1" also piped in flex.