I decided to buy a FGD1753DMS Frigidare disposal due to the 10 year warranty and the competitive price from Home Depot. It takes a week to get it as it is a special order item. Installation was uneventful, except for the immediate post installation leaking of the waste pipe gasket, when running the disposal. (Only running water was fine.) The problem is that both Waste King and Frigidaire use a rubber washer/gasket on the pipe side of the waste pipe flange (not on the mating surface) which is held in place from behind with a soft metal bracket. This results in a plastic on plastic interface between the disposal output port and the waste pipe. Talking to a plumber, he told me that he usually just puts in plumber’s putty to solve the problem, which works for a while.
For $3.49, at Home Depot, you can buy an “insinkerator style” gasket which has a cut in it which fits over the waste pipe flange edge. This provides a seal between the disposal output port and still provides gasket material between the back of the flange and the metal bracket that holds all this together. Since doing this I had no leaks. (FYI, the waste pipe is extremely flimsy.)
When I called Frigidaire about the leaking problem, no one was available that Friday because they were all out on a company event. No one was on call.
When did get through eventually, I was told that there were no parts available for this unit and my only remedy was to return the entire unit for a new one. This will not solve the problem of the plastic on plastic problem. If I return this unit, I have no sink usage for at least a week, otherwise, I have to pay for two and hope that the warranty is honored. The service people had no interest whatsoever in doing a root cause analysis or doing with any kind of preventative failure work. I have seen three different manuals for the same product, with different sets of information, none of which have a gasket as a spare part. I was unable to elevate the issue to anyone that seemed to care about improving the Frigidare products.
So far, the disposal has a low growl when it works, and I don’t know if anything else is wrong. I have another one to replace and will probably pick another manufacturer, who does not have leaking problems right out of the box ,and who is interested in customer feedback.