[Tagging] Query regarding seasonal tag combined for outdoor water fountains.

[Jarek Piórkowski]

On Wed, 15 Jan 2020 at 01:19, Joseph Eisenberg
<joseph.eisenberg at gmail.com> wrote:
> On 1/15/20, European Water Project <europeanwaterproject at gmail.com> wrote:
> > Would it be appropriate to use the tag "seasonal" for a water fountain
> > (whether tagged as "amenity=drinking_water" or "amenity = fountain and
> > drinking_water = yes" )?
>
> Since drinking fountains are man-made rather than natural features,
> they usually have a date when they are turned on or off.
> ...
> For a drinking fountain which is turned on sometime in April and is
> turned off sometime in November, you can use "opening_hours=Apr-Nov".
>
> If the fountain or drinking fountain will be turned on April 10th and
> turned off November 25th, you would use "opening_hours=Apr 10-Nov 25"

What is the recommendation in cases where the months when they are
turned on and off are not easily determined? I have been thinking of
seasonal=summer but happy to take a better tag instead.

Thanks,
--Jarek