Euro Reef - gate valve mod


New member
I'm having trouble getting my RS100 to skim. I have heard about a gate valve mod but can't find any directions can anyone help direct me to another thread?

Do I just install a gate valve between the pump and the input to the skimmer?


New member
A gate valve is used at the output of the skimmer to more accurately control the water height inside the skimmer. How long has the the skimmer been running? Bring the water height to half way up the neck. If you can post a pic of the skimmer in operation it would help. If the skimmer is new it just may need the usual break in period.