i am going to flush out my cooling system and replace what needs to be, my question is, can i use city water straight out of the hose to flush it out, then fill it with distilled water the rest of the way when i mix in the coolant? at my old house i used to just run a hose from in the house to the garage to flush it out. now im at a new house and am not too sure if i can do that. any advice?
I would recommend that you use some kind of commercial flushing chemical with the city water or some here have posted having success with vinegar.
The following is from another poster here:
HEATER CORE FLUSH:
They disconnected the top and the bottom heater hoses at the block- where the Tstat is. (Not the fire wall)
- Connected the gargen hose to the top hose and flush it through the heater core and out the bottom hose.
- Then connected the garden hose to the bottom hose - flushing the heater core backwards out the top hose.
Connect everything back up.
BLOCK FLUSH:
They said to flush the block - they removed the Tstat
- disconnected the Bottom heater hose
- Connect the garden hose to it.
- turn on the water
- flush the heater core into the block and out through where the hose was connected.
Connect everything back up.
- remove the top hose
- connect your garden hose to that hose
- flush through the Heater core and through the block and out where the hose was connected to.
REPLACE YOUR THERMOSTAT
YOU'RE DONE
Good luck.