I’ve been asked about dishwashers, water heaters and the like.  I’m not an expert, but basically, the sludge is drawn into any pipes that you use before the system manages to properly flush itself.

If you ran your hot water this morning, then there’s probably sludge in your tank.  It will either run through or settle out eventually, but if you’re concerned, you’ll need to consult a professional about possibly draining and cleaning it.  It’s pretty normal to have some degree of build up in the water heater but this may have caused more than normal.

As for dishwashers, I’d recommend running your kitchen faucet until it runs clear.  If it looks like there was a fair amount of dirt in your kitchen pipes, you may want to run the dishwasher empty once through and then clean the filters before running a load of dishes.

I’m only speaking from personal experience; for more info, you can explore online resources or check with Cathy at Royal Management.