Skimmer water level in sump???

Hi all. I acquired a Eshoops PSK-200 that is sitting in my sump / refugium. It's currently in about 8" or 9" of water and even on it's lowest possible setting it's overflowing the skim basket with bubbles that turn into water. It's running the original pump. On an older skimmer there was room that i could put a ball valve in place and regulate flow but that's not possible on this one.



Is there any other way to adjust this other than having 12" of water or more in my sump?



That just seems excessive and i didn't think it was supposed to be that high. I do have a jbjlighting ATO with a 10 gallon reserve that can keep the water where I need it.



Thanks for your feedback...



My Setup ************************************************** **



* Marineland 90 gallon crystal clear corner flo - 700 gph flow capacity

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** Down below -



* 30 gallon sump / refugium

* Dual skimmer sock

* Eshoops PSK-200 protein skimmer

* Mag 12 return pump

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** In the tank -



* Jebao Wireless RW-15 wave maker with electronic controller x 1 ( want a

2nd )

* T-12 lighting - 2 x white and 2 x blue

- replace soon with LED or T-5

* Hydor Koralia Evolution 1400

* Hydor Koralia Evolution 1050

* JBJ lighting Auto Top Off - 10 gallon reserve

* 60 lbs live sand ( 2+ inch sand bed )

* 40 lbs base rock

* 3" yellow tang

* 2" blue tang

* 1" oscellaris clown x 2

* Small star fish

* Red fire shrimp

* Hermits x 10

* Snail x 10

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** Want to add

* Jebao Wireless RW-15 wave maker with electronic controller x 1

- will remove Koralia's when I add this...

* LED or T-5 lighting x 48"

* 40 lbs or so live rock

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Extra equipment

* Mag 7 pump

* Mag 5 pump