I use a quarter or a wide straight blade screwdriver.  No need for a special tool.

*Thanks and Stay Well,*

*Stephen Staum*

*(781) 704-1037*

On Fri, Jun 11, 2021 at 12:56 PM Cary Tolbert <retiredtoby at gmail.com> wrote:

> There is a water fill cap on the starboard  forward part of the deck. There
> is a slender shallow slot to loosen and tighten this flat surface cap. What
> is the best tool to use. Surely someone has solved this problem.
> Thanks!
>
> Cary
> S/V Whisper '86
>