I've come in on this thread late, but here is my experience.
I've just finished a 3 month delivery
of a cat equiped with 2 Jabsco Lites. These are rubbish. Below is an extract of the mail I sent to the owner, and before the moderators get hot under the collar, this has also been forwarded to Jabsco's european rep:
"Toilets: the first broke before St Helena, and the second just after. On a million euro boat we now **** in a bucket!
Both broke the toothed pulley on the motor
which drives the macerater, and both after a pee - ie no solids. One also broke the drive belt.
I've seen cheap
Chinese children's toys better constructed than these things, and if it was my boat I would be hunting the supplier with a definite idea just where I was going to put the toilet.
I don't know how, in good conscience, Jabsco can sell something which lasts less than a month when used in the real world. You get an idea of their honesty when you read their brochure under the heading "Features" I quote: " Virtually silent operation" Are they serious! A machine gun is quieter than their product. Bunch of lying thugs."
On repairing them one shredded the belt after a week. I've used Jabsco Quiet flush toilets extensively and never had a problem. I can't believe they are the same brand.
They are rubbish, do not touch them.