Welcome to our forum.
I just changed my water last Saturday (it had been in use since Feb.) and did not have to clean anything under the waterline. At and just above the waterline, I used the Leisure Time Tub Rub which is convenient and very effective. Some 303 on the cover and pillows and it's all set.....
But you just flip the cabinet panels around instead of cleaning them and they look like new right...?
Oh Stuart......