sump tank design with a max height of 16 feet

Question
Dear sir/madom:

I have a 300 gallon main fish only tank in the ground floor and a 100 gallons (48'x24"x17") tank (intended to be modified as a sump tank )at the basement underneath the main tank.) I use Sequence Hammerhead external pump (@3000 gallons per hour at max head of 15-16 feet and the waterflow are intended to be reduced by valve ball to 2000-2400 gallons per hour from 3000G).  My questions are:

1/ how to design a sump for this to take this speed and velocity of water flow and to avoid water splash out and to reduce waterflow noice in pipe and enter into the Sump tank 15 feet down in the basement? Any drawing possible for to refer to study? Do I need any other mechanical filtration chamber before bio balls? Do I need another sealed bio balls tank/glass box inside the sump to avoid water spillage etc? Do I need a refugium or live rock filtration section in the sump?( I have 2'x2' bioballs ; external skimmer, external pump, Ro units,50 gallon RO plastic container for exchange water, ATO unit, and will buy a MEDWEST deNitrator and REDSEA ozoner with contoller and probles.   
2/ Any idea for reducing waterflow noice in the aquarium piping systems in my house?

Please kindly help and advise and I will greatly appreciate your help.

Big Al.

Answer
I have a 300 gallon main fish only tank in the ground floor <Wow! A Monster!> and a 100 gallons (48'x24"x17") tank <great ratio!> (intended to be modified as a sump tank )at the basement underneath the main tank.) I use Sequence Hammerhead external pump (@3000 gallons per hour at max head of 15-16 feet <is it 3000 gph at 16 feet, or is it 3000 gph as 0 feet of head pressure because, depending on how you place your sump, the flow could be cut down dramatically> and the waterflow are intended to be reduced by valve ball to 2000-2400 gallons per hour from 3000G).  My questions are:

1/ how to design a sump for this to take this speed and velocity of water flow and to avoid water splash out and to reduce waterflow noice in pipe and enter into the Sump tank 15 feet down in the basement? <You will want as many pipes running from the tank to cut down the velocity of each one as possible. It you submerge the ends, then that will help with the water splash> Any drawing possible for to refer to study? Do I need any other mechanical filtration chamber before bio balls?<if you have live rock, then bio-balls are not necessary,and, when improperly cleaned, can cause a nitrate problem.> Do I need another sealed bio-balls tank/glass box inside the sump to avoid water spillage etc? <Like I said before, when improperly cleaned, the bioballs will cause A LOT of nitrates, let live rock take over this role.> Do I need a refugium or live rock filtration section in the sump? <Refugiums are great because they can help you isolate a species and they can remove nutrients from the water through algae scrubbing, (link on algae scrubbing at bottom)> ( I have 2'x2' bioballs ; external skimmer, external pump, Ro units,50 gallon RO plastic container for exchange water, ATO unit, and will buy a MEDWEST deNitrator and REDSEA ozoner with contoller and probles.   
2/ Any idea for reducing waterflow noice in the aquarium piping systems in my house? <you could use foam to insulate the outside of the pipes. But make sure to use the flexible stuff for overwintering, link at bottom of response.>

Foam Insulation
http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10051&...

Algae Scrubber
http://shortText.com/dru1tf

John Kliewer







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I am not sure about ozoners or denitrators, I do not have much experience in that area.