trickling water sound in the drain

yfulmer

we had a water system installed last year and in the past few months i have been noticing that in our kitchen drain you can here water draining a trickle sound. i want to know if this is a normal thing ? i know that the brine tank is supposed to drain late at night but i didn't think it was to drain all the time.
any help or advice would be nice. the system is a Hague i am not sure of spelling.

Mike Swearingen

Water trickling noise through the drain system when everything is supposed to be off usually indicates a leaking toilet flapper.
Mike

yfulmer

would the toilet not refill?