Bosch DW gives off funny smell after several days of non-use....
I've done some searching on this subject and found some other people who seem to have a similar problem but never really found a definitive answer as to why this is happening. I think I may have figured out the issue, and a possible cure...
Immediately after I do a load of dishes, there is no smell. However, after about two or three days, a foul odor starts build up inside of it, usually getting worse and worse as the days progress. And this happens even if I don't put any dirty dishes in there.
So I opened the drain at the bottom of the tub and noticed a small amount of undrained water from the previous load... maybe about 1/2" of standing water. Again, this water is not in the tub itself, but underneath the drain cap, down in the pumping mechanism below the tub. I am thinking this small amount of water gets left behind because it can't overcome the high-loop after the drain pump shuts off, so it falls back down the tube and sits down inside the bottom of the drain until the next time I run the DW.
With that said, I was thinking maybe it wouldn't hurt to keep a small eye dropper full of bleach, and after every load, just open the drain cap and put a drop of bleach down inside there to help kill whatever is causing the smell. Now I know bleach is bad for the door seals, but this is water that will never touch the inside of the tub because it has already drained out of the tub and is sitting, as mentioned before, underneath the drain. As well, we're only talking about one little drop.
Anybody have any other thought or insight on this? For example, should I expect the DW to pump out every last drop of water from the drain tube or am I correct in assuming that the high-loop will always cause a little bit of drain water to fall back down after the DW shuts off?
By the way, I bought the Dishwasher Magic product, but it won't work because after the first load of dishes, I'm right back where I started, with a fresh supply of dirty water.