Hard White Pellets in Waterline Following Heater Repair
Now that you are stuck with the fragments of sediment you might try draining the hot water tank (not all the way, just six inches below the top will do). Then open several hot water faucets and one at a time back flush the lines that are giving trouble. You'll have to be careful to avoid squirting water all over the place.
Sometimes turning on the cold faucet while the matching hot water faucet is still on, the entire hot water system is still off, and the tank still has the air space will do the backflush.
Hopefully any remaining pellets will come out a few at a time later when you turn everything back on.
Don't force any faucets. Crunching down on a pellet can damage a faucet washer.
Last edited by AllanJ; 01-28-2009 at 10:17 AM.