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Old 12/04/2007, 02:09 PM
tgreene tgreene is offline
Join Date: May 2003
Location: Jonesboro, Arkansas
Posts: 1,451
Due to the venturis natural flow restrictions, I obviously removed the INTAKE gate valve since it was no longer needed... Also, I've already noticed that the level is perfectly maintained, without any of the fluctuations that I had before.

Old 12/04/2007, 03:39 PM
Snausy Snausy is offline
Registered Member
Join Date: Aug 2006
Location: Seattle, WA
Posts: 166
I'm not sure I understand why you would have an "intake" gate-valve mod in the first place. The venturi pulls in what it pulls in...why would you want to restrict that?

If the new venturi pulls in more air, then great but less water? The pump is the same.
Old 12/04/2007, 05:59 PM
tgreene tgreene is offline
Join Date: May 2003
Location: Jonesboro, Arkansas
Posts: 1,451
The intake gate valve was due to the 1" supply line and large feed pump... Tuning it back just a touch kept my skimmer from pulsing due to TOO MUCH water.

The venturi is 3/4" tapered down to ever so small, so the restriction is huge in comparrison to what I had... No matter how you slice it, smaller diameter intake = less water being processed through the skimmer!

Old 01/11/2008, 01:25 PM
D-Rod D-Rod is offline
The Incredible Mr. Limpet
Join Date: Apr 2006
Location: Paso Robles, Ca
Posts: 688
I only have 2.5 inches of room above my skimmer can I cut the longer top pvc piece down to fit and still have the mod work the way it's supposed too?

not my skimmer btw

The Vino Man
Old 01/11/2008, 02:09 PM
Konadog Konadog is offline
TRC Leader
Join Date: Feb 2002
Location: Long Beach, So Cal
Posts: 8,351
Yes, that pipe doesn't have to be that tall. IMO, it really shouldn't be higher than the top of the riser tube in the skimmer.
Save the Reef........................... Save the world.


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