The water sensor uses a capacitive touch sensor to wake the SiB when water is detected. The sensor can be tested while the SiB is sleeping, so no timer is necessary!

PROG water
wakecap 4 200 ; the sensor connects to GPIO 4
; a value of 400 or lower wakes the SiB
imto 12345551234 WATER! WATER!
LOOP

TO SUBMIT THIS PROGRAM:
First, send MODE SID to your SiB, as this is a SID program. It is not activated by the button press but rather by a timed sensor event.
Next, send the above program in an IM to your SiB, and press your SiB to receive the program.
Finally, place your SiB where you wish to detect flooding or moisture.