[Bblinks]

Those pumps are generally a bit noisier then lets say reefflo pumps, because it is anchored to the stud it will amplify the humming noise through out the whole house. You can try a sound dempening pad from Jl or bulk reef supply if you want or maybe some high density foam from HD but i still think it will have a vibrational humming sound. If in any case nothing is helping then I will be leaning towards a relocation program for the pump. Remove it off the stud and build an extension for it in front of the sump.

Tank is coming long nice. Keep up the good work.