We had a similar flooding issue and went with an Asko because the lead time on the Bosch was longer and the Asko had fan dry. Supposedly the Asko also has leak prevention (some sort of self containment system and a water shutoff sensor). Its been running about two years with no leaks.

The tines on the racks of our Asko are really close together though. It works great for Corelle because you can really pack in the dishes. Not sure how the Asko's narrow tines would work with stoneware dishes (ie Fiesta).

>>>"Can't believe they don't ALL offer this feature..... Does anyone have personal experience with the 800 series and this feature??"<<<

There are several brands that offer an enclosing tub and leak protection/detection systems. From shopping for a new DW last year, I recall that, besides Bosch's "AquaStop" and the system on musicgalnd's Asko, all of the Miele DWs have a similar system, and I think that GE models have something called "floor protection." There may be others. It will be buried in features lists somewhere if they have it.

My personal experience is with Bosch dishwashers, and specifically with older 500 models and on the new 300 series models. However, the AquaStop is the same as on the current 800 series. It works very well.

A friend's 500 series model --- which was about ten years old, IIRC --- stopped running and flashed an error code. I pulled the DW and found something less than 1/8th" of water had collected in the tub that formed the outside base of the unit. That water triggered the protection system. The water protecting tub/base looked like it could hold up to 3 inches of water, Sopped up the water with a towel and the unit would run for several cycles before enough leaked to trigger the protection system. (Running it was how I found the leak which was in a cracked pump housing.) Occasional mopping the containment tub bought time for shopping for repairs or replacement. All leakage was contained and there was none on the floors.

My own experience was with a new 300 series model which I bought for my house in early 2017. My unit (from the first production run, I think) had a leaky water inlet solenoid or housing. Might have been shipping and handling damage or possibly a defective part. (That can happen with all products from all manufacturers.) Again, the AquaStop shut off the water supply and the tub totally contained the dribbling leakage. I live in a rural area, so it took some doing for Bosch customer service to find a warranty servicer for my area --- turned out to be somebody nearby who was their factory rep. (Apparently, the customer service database was a bit goofy for my area.) Anyway, the actual repair took maybe 5 minutes with a $9 part. (I could have done it myself, but Bosch was paying for everything and i wanted to keep the warranty in force.) No damage to my kitchen's wood floors

One thing to keep in mind with leak protection systems: they protect against leaks from the dishwasher itself. They will not help if you have a leak in the supply hose or the plumbing to which the hose connects. Best to install a new, good-quality supply hose when you replace the dishwasher.

You probably will need a new supply hose, anyway. That's because current dishwashers use a 3/4" hose-thread fitting on the inlet instead of the 3/8" brass compression fitting that was used with older dishwashers. In theory, you could buy a 3/8 to 3/4 adapter and re-use the old supply hose, but I strongly recommend just getting a new hose for peace of mind.

With your 25-year old set-up, I also would watch the supply-line valve for the take-off at the hot water line and make sure leaks don't develop there after disconnecting the old hose and installing the new one. This is from experience. I originally installed my valve about 20 years ago when I installed my first Bosch DW. Sure enough, that little side valve started leaking out the handle when I turned it back on after connecting the new supply hose for the new DW.

>>>"The tines on the [Bosch & Asko?] racks are really close together though. It works great for Corelle because you can really pack in the dishes. Not sure how the narrow tines would work with stoneware dishes (ie Fiesta)."<<<

There is a lot of loading flexibility in the current Bosch models including options for narrow and not so-narrow tine spacing. My china is old restaurant supply Buffalo China dishware. The pieces are as large, thick and heavy as a lot of stoneware. I have had no problems loading them in my current or previous Bosch DW. However, YMMV. Best to take a box of your stuff down to your appliance seller to be sure that things will fit to your satisfaction.

Thanks JW! While our house is old, EVERYTHING except the dishwasher (sadly) is new. We actually had to jackhammer through our slab foundation to re-do the plumbing for the new kitchen configuration, so all of the hook-ups are new and have passed inspections. Even bought a new supply hose. Sadly, it seems that the seals on the motor may have dried out during the 4 months it sat in the garage during the remodel, and after running fine daily for a couple of weeks, had a catastrophic failure :(. Pretty sold on the Bosch 800 series, but will also look at the Miele as we have a 15 year old Meile front-load washer that is an absolute tank....

I had a Miele that I purchased in 2010. It had two types of leaks protection. The first was the water inlet hose had the electronic solenoid valve on the end where it connects to the water supply (similar to Bosch). In theory, if there was a leak within there, it would shut off. The second leak detection was a float switch under the unit in the bottom pan, which if water leaked and got into the pan, it would raise the float, drian the water and turn off.

While this is all good, last year of 7 years of use, the Solenoid in the hose went bad and would got fill the unit with water. I called Miele, and for part and labor it would of cost about $500 to fix. But after looking at some YouTube videos, I saw this was a common problem, and there was a hack to replace the bad Miele solenoid with a GE one for under $50. So I did that and it worked fine. But then in Jan of this year, the main circulation pump motor went out after 8 years of use. Price of the part was $700 and about $300 for labor, so I decided to replace the unit.

After looking a Miele, Asko, and Bosch, I still liked the Miele units the best, as well as Asko. Bosch not so much. Due to a good deal, I went with the Miele G6625SCU for a few hundred off. When I was delivered and installed, the water hose that it uses in now a standard braided metal with a compression fitting on the end. The electronic solenoid has been improved and placed on the inside of the unit, instead of externally on the hose. When I talked to Miele about this, I was told this was an improvement to keep the solenoid from going bad and to last longer.

I've been using the unit for 2 months, no issues or leaks, and I like it more than the model it replaced.

I had a Miele DW for 15 years before selling the house with 0 issues. Only brand I would go with. These are built to last.