optical anti collision device ;-)

[ptoot]

Since a week or two I swim in a public pool that has a nice blue line but no T on the ends, as a result I have bumped my head on occasion. Also there's quite a bit of traffic in the pool at times.

Does anyone have experience with installing a lens/prism/thing that has the effect of a spheric mirror (the kind they have in shops), so I can tell if there's traffic or a pool wall ahead. Obviously, it should not dominate my view.

What did/would you use, a prism, a lens? What size and FL?

Thank you!

 

[Bertrand]

You can put a weight down where the T would be, that helps

 

[ptoot]

I tried the weight but ppl tend to pick it up, examine it and drop it in the wrong place.
I'll try a sticker and hope they don't mind
Posted via Mobile Device

 

[Unclejake]

Perhaps swim with your arms stretched out infront of you.