Skimmer keeps spontaneously overflowing.

[daplatapus]

Something stuck in or dirty air intake?

[gobytron]

I always found that one of the most overlooked skimmer adjustments is how deep in the water in your sump it sits.

Try building a stand for your skimmer out of egg crate (or anything, I always used egg crate because it's handy and easy to clean/adjust) and raising it inside your sump.

Then set your skimmer to skim to your preference with the new depth.

This might not solve whatever is changing in your water column to create more skimmate all of a sudden, but it will stop your skimmer from overflowing when that does happen.

[MarkoD]

My skimmer is already on a stand and at optimum water level of 8"

Air intake is also clean

[rishu_pepper]

Any epoxy used lately? That usually makes it go nuts.

[Skimmin]

Check the venturi on the pump. If it is starting to build up with salt it could make the skimmer a lot touchier. Might just need a good cleaning all around.

[gobytron]

Originally Posted by MarkoD

My skimmer is already on a stand and at optimum water level of 8"

Air intake is also clean

Alright.

Well, if you continue to have your skimmer overflowing issue, please think about raising it a little more and adjusting your skimmer....it can't hurt.

[Myka]

How long have you had the skimmer? When did it start this random overflowing? When's the last time you gave the whole thing a good vinegar bath including the venturi? Fwiw, I also think that considering the water depth is a reasonable step. manufacturer recommendations don't always turn out to be the best. Setting a tile or two under the skimmer might be an easy solution.

Originally Posted by MarkoD

I have a csc250 on my 100 gallon total volume system.

Fwiw, skimmer sizing has more to do with display volume than total system volume (within reason). This is because of the potential bioload, and generally the bioload is a direct reflection of the display tank size. Do you have a very light bioload?

[gregzz4]

When my Skimz SK181 (pretty much same skimmer) did this I found Ca built up in the venturi just below the airline fitting. This was a few months from new.
I now clean the venturi weekly and it hasn't puked in years.

[MarkoD]

ill try checking the venturi again. thanks for the suggestions guys

[MarkoD]

Originally Posted by Myka

How long have you had the skimmer? When did it start this random overflowing? When's the last time you gave the whole thing a good vinegar bath including the venturi? Fwiw, I also think that considering the water depth is a reasonable step. manufacturer recommendations don't always turn out to be the best. Setting a tile or two under the skimmer might be an easy solution.



Fwiw, skimmer sizing has more to do with display volume than total system volume (within reason). This is because of the potential bioload, and generally the bioload is a direct reflection of the display tank size. Do you have a very light bioload?

no i'd say i have a pretty heavy bio load. fish, corals, 3 very large clams