Sorry, Kien, you're out of luck here
But my loc-lines go both ways

that's what I was referring to.

The siphon is no concer to me i have a check valve on the line, what was my interest was the fact that putting a screen on top of a rimless tank would interfear with a lockline going into the water, so that why i was interested in the input. i do know the consequence of splashing, noises and salt creep. I'm interested in people's dealing with those paricular problem and how they handle them. You can't buy experience. Thank you all for your input. Still not sure what route i'll choose yet. :biggrin:

I have a screen top on my tank and my loc line goes beneath the surface. I just cut a small hole for the loc line to go through the mesh. Looks tidy and stops anything from jumping out. I think you'll regret it of you have your return above the surface.....it will get messy and be really noisy.

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Ok so it works that way, you just gave me the answer i was looking for thanks. How do you take off your screen when you want to work in your tank? Can you post picture ? Thanks

Yeah it works really well. I have enough room under my light that I can lift up the front of the mesh top and get my arm in. If I need to do anything more substantial then I just turn off my return pump, detach the loc line and remove the whole screen top.

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http://img.tapatalk.com/d/13/10/23/6yjugada.jpg

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Hey thanks ! :biggrin:

you could also just notch around your return like this.

http://i1002.photobucket.com/albums/...g?t=1276673070

i have a square mesh top with the corrugated plastic used for art projects etc carved to fit the return area. this meets up against the mesh frame.