3115/2 skimmer Question

[tszetela]

I have a 3115/2 and I was on the Tunze site and I do not see it listed any more. I only see the DOC 3115/2 listed. So has the 3115/2 been replaced by the DOC line? What is the difference between the two and can my skimmer be converted to a DOC skimmer?

 

[rvitko]

It was replaced by the 9005, so many parts are different that it would not be cost effective to upgrade. I would say the 9005 DOC is about 25% more powerful, the cup is shorter and wider and the housing actively takes in water though it can be set to recirculate for plankton safe skimming like your 3115/2