We just had the angle stops for all of our toilets as well as the flushing mechanisms replaced just over 2 months ago. Now the angle stop in our master bathroom is hissing when the tank is filling back up with water. Any ideas on how to fix it?

If I turn down the wate pressure, it does stop a little.

We just had the angle stops for all of our toilets as well as the flushing mechanisms replaced just over 2 months ago. Now the angle stop in our master bathroom is hissing when the tank is filling back up with water. Any ideas on how to fix it?

If I turn down the wate pressure, it does stop a little. :confused:
Jessica_ Sheen, - Check all the nuts on the angle stop including the big nut behind the knob of the angle stop, It sounds like you have a air leak when water is being drawed through service line. Make sure that the hissing you are hearing is comeing from the angle stop, it may be comeing from inside the tank, if os it will probley be the filler valve sucking in air,or could be spewing fine water mist from tiny crack in filler valve. Hope this helps out, If it don't call the instaler back out,usely no charge. Hope I have helped, if I have ,rate my answer below::::: GOOD DAY & GOD BLESS :::: F.B.E.:) :) :D