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Hi Phil, That's a very useful tip. I tried it on my acrylic dome. And would you believe it, it worked like a champ. ;} I see I need to learn the knack. Now for the other side of the coin/window. How do you deal with the fine bubbles on the exterior surface? I had done some test on a glass aquarium with Rain-X, and it worked great on that. But I've since learned that product isn't good for the acrylic. I was always messing with those pesky bubbles in glass and acrylic aquariums. A wind shield whippier would do the trick. But that would entail more thru hulls and parts. Using a water jet might work also. I just figured the surge action of your subs being craned in and out of rough water would take care of most of it. Regards, Szybowski From: phil@philnuytten.com To: personal_submersibles@psubs.org Subject: Re: [PSUBS-MAILIST] Clogged O2 orifices Date: Wed, 19 Aug 2009 22:07:38 -0700 Hi, Alan:
We use a light coating of 'Joy' household detergent soap - put on with a dampened pad of Kleenex - it acts as a wetting agent and the moisture lays as an even, clear sheet that is virtually invisible ojn the acrylic- since the soap breaks the surface tension that causes the minute 'droplets' to act as a 'fog'.
For you diving-helmet wearers, it's also one of the few surfactants that I know, that prevents fogging on polycarbonates (Lexan, etc.)
It's a bit of a knack to get just the right amount on - but it works like a champ!
Phil
P,S. consider using an in-line scintered filter before your steady-flo orifice
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