Re: Bath level sensor

["Brian Milton" <bmilton@xxxxxxxxxxx>]

I just found this.  Might be of use to you.  Justs gives out a sound
when it reaches a level.
http://www.circuitsonweb.com/resources/Home_Electronics/

--- In ukha_d@xxxxxxx, "David Buckley" <db@e...> wrote:
> --- In ukha_d@xxxxxxx, "Mike Griffiths"
<mikegriff@e...>
> wrote:
> > Does anyone know of a reliable Bath level sensor
>
> Before comitting, have a drool at the ESS-TUB product from odine,
at
> http://www.interbath.com/ondine/ess.htm.
 Their fill mechanism is
> just a timer, which you set at installation.  And if my memory
> serves there is a spare serial port on the control box...
>
> The other company that did baths automatically was Kohler, who had
> the autofill feature, but last I looked they no longer supplied
this
> thing.
>
> The way I would approach it is the same as a washing machine.
> Automate the bath drain so you no longer have plug.  Use a washing
> machine pressure sensor plumbed into the drain, before the dain
> cock, obviously :-), and set it for the depth of water you want.
If
> you want to be flash you could use a pressure sensor, and know how
> deep the bath is, allowing for different size bodies....
>
> Finally, and you already know this, water plus electricity can
equal
> trouble, use RCD supplied power, and I would recommend relay or
opto-
> isolation to the rest of the house control system.
>
> I came across a scary story on usenet somewhere about someone
whose
> bath drain was not earth bonded, but the taps on the wall were,
and
> when he stuck his toe on the taps got a gentle tingle.  Of course,
> should a fault develop somewhere (and not necessarily in his
house)
> he would probably die...