Thread: Sight glass
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Old 06-29-2013, 05:40 AM   #11
psneeld
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Quote:
Originally Posted by Hendo78 View Post
Red is a colour that goes first when your eyes start to go whilst green is the last colour that goes hence why (in Australia) all safety showers and emergency exits are green. For that exact reason. Whilst on colours, a blue LED will Travel further in water than any other colour.

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all true but it's the contrast that is important here...as much as the color....red fuel has enough contrast if the sight tube is clear to be seen quite a distance as long as the lighting is sufficient.

I'm sure hope the OP knows that...maybe it's the angle or something else making it difficult...but then even colored floats probably wouldn't help.

I really have a hard time believing that it would be an issue with new/clean glass and some decent light.
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