[whatsnewell]

Clarke is correct.  The only time I have needed or used a macerator pump is when parked where there is no RV dump available but access thru a household sewer trap.  It seems to me that the disadvantage of using the pump on a regular basis is that the larger RV sewer hose does a much better job of flushing out the solids in the bottom of the tank.

Chester is right......what I do to avoid that every other time I fill up the tank 2, or 3 times with fresh water after pumping out the initial effluent and then pump it out again.....it takes a little longer, obviously, but eventually I get all the solids out of the tank.