It'll take a while. Suction the detergent out with a turkey baster and flush water into it. Repeatedly as needed to get it cleared. Of course, try to not let any of it run down the door and into the machine while doing the flushing.

I also had this problem with 2 Blanco dispensers. I called them and they sent replacement pump mechanisms. This did not work any better, so I called again. They told me I need to dilute the "ultra" detergent I was using to about 50-50, and this finally did the trick. The better dishwashing detergents are now being made so thick that they can't go through the opening (which on more expensive dispensers tends to be small). I tried to fix it by adding hot water through the top opening of the bottle then stirring with the plastic bottom "straw" part. This still did not work well, so I had to dismantle the whole thing, dump out the old detergent, then refill it with the diluted mix. I was rather annoyed that I had problems with such expensive dispensers so I looked at some others that I knew worked well. The main difference seemed to be that the hole opening of the less expensive dispensers was a much larger diameter.

Can anyone recommend a dispenser with a LONG spout? The one we have now (Price Pfister) has an utterly useless 2" spout. I have found a 3 7/8" spout, also 3 1/2", but am wondering if there are any that are longer. The new sink is 10" deep. We weren't going to get a new soap dispenser, but after reading this thread, I thought, "I don't want ugly bottles on my new granite!" I could do a rack mounted on the sink cabinet door, but I think the dispenser is neater :-) It just needs a long spout so it can actually squirt dish soap into the pots, instead of dribbling down the side of the sink. Will definitely get a NeverMT--so glad that I heard of it here!

Won't hurt to run the load but may need to add an Extra Rinse or run an additional rinse/spin on it after it's done. Bleach is typically dispensed into the first rinse, so your detergent charge will make the first rinse into another wash. Pull the dispenser drawer and wash out the bleach compartment when done to insure no detergent is left.