Is this the product we are talking about?
Or this one perhaps?
Titus, could you please ID the product you have used which seems to leave plastic material caught in the macerator's inlet? Also, what kind of time lag are we talking about, and have you done some driving around with additional water/waste added to the tank for road action to help break down the waste?
How does the system work with a macerator? Is there a small tank after the toilet, where things can digest before they are macerated and sent to the holding tank? This is where the plastic bag needs to dissolve. Maybe there is not enough liquid here?
Maybe the dissolving bags are intended only
for the old black water tanks, and not for systems with a macerator?
Do the macerator's instructions in the OEM manuals say anything about this?
PS -- Other threads FYI: