Reef octopus 2000 int help

[Oaken]

I recently bought a Reef Octopus 2000 int. I finally got it tuned good but the water is flashing out of the gate valve into the sump. I was told to fix this I would need a 90-degree elbow. I've been to the hardware store to Times now and none of the fittings I'm trying to fit work, I have tried one and a half inch and 1 inch and a quarter and neither one work. I even tried dremali down the 1.25 in. Does anyone know the size for this gate valve?

 

[Oaken]

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[Ultra Aquatics]

They use metric fittings and the skimmer should have came with an adapter. Regular pvc will not fit as you found.

The output is 40mm and comes with a 1.25” adapter.

 

[Oaken]

They use metric fittings and the skimmer should have came with an adapter. Regular pvc will not fit as you found.

The output is 40mm and comes with a 1.25” adapter.

Thank you but no adapter I bought it used

 

[Ultra Aquatics]

Thank you but no adapter I bought it used

You can buy it at BRS :
https://www.bulkreefsupply.com/metric-to-standard-pvc-adapters.html

 

[Blue Ring Octopus]

200 or 2000 model?