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Re: aquanotes

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On Mon, 02 Feb 2026 12:23:26 -0500, Joe Gwinn <joegwinn@comcast.net>
wrote:

>Operational Trials Field Report at bottom:
>
>On Fri, 30 Jan 2026 11:47:43 -0500, Joe Gwinn <joegwinn@comcast.net>
>wrote:
>
>>Follow-up report:
>>
>>On Wed, 28 Jan 2026 14:29:45 -0500, Joe Gwinn <joegwinn@comcast.net>
>>wrote:
>>
>>>On Wed, 28 Jan 2026 16:25:30 +0000, Martin Brown
>>><'''newspam'''@nonad.co.uk> wrote:
>>>
>>>>On 26/01/2026 18:53, john larkin wrote:
>>>>> Does anyone use a waterproof notepad to remember shower ideas?
>>>>> 
>>>>> Aquanotes is one.
>>>>
>>>>I presume it is an overpriced diver's slate. eg
>>>>
>>>><https://www.amazon.co.uk/Joyzan-Whiteboard-Underwater-Portable-Graphite/dp/B09Z6W2LCV/>
>>>>
>>>>Chosen for having a short URL - not the cheapest on offer.
>>>
>>>You learn something every day.  In the US, searching AMZN for a
>>>"diver's slate" brings up multiple offerings for something like ten
>>>dollars.  So by two, for bigger ideas?.  And people do mention use in
>>>the shower.
>>
>>So I did some research, and bought the following:
>>
>>"Trident Instructor Size Underwater Writing Dive Slates", 8" by 10",
>>US $20 at AMZN:
>>
>>.<https://www.amazon.com/dp/B0000BZK3Q>
>>
>>It arrived yesterday.  It is dead simple, being a 8" by 10" piece of
>>injection-molded white polypropylene 0.100" thick, with a molded-in
>>surface texture.  
>>
>>Some of the edges were uncomfortably sharp, so I trimmed them with a
>>small wood plane, which works very well.  Sharp metalworking files
>>also work well.  
>>
>>Polypropylene is not as gummy as polyethylene, so one gets clean curls
>>or chips from these cutting tools.
>>
>>The pencil is an ordinary wood-wrapped graphite pencil, which isn't a
>>real dive-slate pencil; these are available and will fit, but cost
>>about $5 per unit.
>>
>>Operational trials to come.
>
>The slate does work pretty well in the shower with the wood-wrapped
>graphite pencil that came with the slate.
>
>The writing mostly washes off if the shower stream is allowed to hit
>the slate.  
>
>There is also a gray residual background, just as for pencil-line
>ghosts lingering on paper after the lines are erased.  These ghosts
>are removed by washing with Dawn Detergent, as for washing dishes. 
>
>The fancy dive slate pencils use the same kind of graphite in wood as
>ordinary graphite pencils, and are quite expensive.  An ordinary
>Staedtler Lumograph HB pencil will work just as well, and cost a
>dollar or two on AMZN, so that's the simpler solution.
>
>.<https://www.amazon.com/STAEDTLER-Lumograph-Graphite-Drawing-Pencils/dp/B0BX76ZCRD>
>
>Joe

I got an Aquanote pad and pencil. They are suction-cupped to the glass
shower door. I can take notes and then tear off a sheet and take it to
work.

I'd have to take a pic or transcribe notes on a slate.


John Larkin
Highland Tech Glen Canyon Design Center
Lunatic Fringe Electronics

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aquanotes john larkin <jl@glen--canyon.com> - 2026-01-26 10:53 -0800
  Re: aquanotes Joe Gwinn <joegwinn@comcast.net> - 2026-01-26 15:17 -0500
    Re: aquanotes Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-01-26 20:42 +0000
      Re: aquanotes john larkin <jl@glen--canyon.com> - 2026-01-26 14:03 -0800
    Re: aquanotes john larkin <jl@glen--canyon.com> - 2026-01-26 14:02 -0800
      Re: aquanotes Joe Gwinn <joegwinn@comcast.net> - 2026-01-26 19:36 -0500
  Re: aquanotes liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-01-26 21:24 +0000
    Re: aquanotes bitrex <user@example.net> - 2026-01-27 22:21 -0500
      Re: aquanotes john larkin <jl@glen--canyon.com> - 2026-01-27 20:21 -0800
        Re: aquanotes Jan Panteltje <alien@comet.invalid> - 2026-01-28 06:37 +0000
      Re: aquanotes Jan Panteltje <alien@comet.invalid> - 2026-01-28 06:34 +0000
        Re: aquanotes john larkin <jl@glen--canyon.com> - 2026-01-28 08:07 -0800
          Re: aquanotes liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-01-28 16:56 +0000
            Re: aquanotes john larkin <jl@glen--canyon.com> - 2026-01-28 09:12 -0800
              Re: aquanotes liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-01-28 17:41 +0000
                Re: aquanotes john larkin <jl@glen--canyon.com> - 2026-01-28 13:34 -0800
          Re: aquanotes Jan Panteltje <alien@comet.invalid> - 2026-01-29 06:22 +0000
  Re: aquanotes "Tom Del Rosso" <fizzbintuesday@that-google-mail-domain.com> - 2026-01-27 00:32 -0500
  Re: aquanotes Martin Brown <'''newspam'''@nonad.co.uk> - 2026-01-28 16:25 +0000
    Re: aquanotes Joe Gwinn <joegwinn@comcast.net> - 2026-01-28 14:29 -0500
      Re: aquanotes Joe Gwinn <joegwinn@comcast.net> - 2026-01-30 11:47 -0500
        Re: aquanotes Joe Gwinn <joegwinn@comcast.net> - 2026-02-02 12:23 -0500
          Re: aquanotes john larkin <jl@glen--canyon.com> - 2026-02-02 09:32 -0800
            Re: aquanotes Joe Gwinn <joegwinn@comcast.net> - 2026-02-02 13:10 -0500
    Re: aquanotes Jan Panteltje <alien@comet.invalid> - 2026-01-29 06:41 +0000

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