Sounds like inadequate venting for the drain lines. Could have been build this way or maybe a clog has developed in the vent pipe. Such as birds or squrrels building a nest in the vent pipe up on the ... read more
We would suggest that in order not to damage a door, that you use an over the door hanger. An even bigger suggestion with an over the door hangerĀ is adding a self adhesive felt dot to the back where i ... read more