hedgehopper wrote:
If I first drain the fresh water tank, given that this fitting attaches to my city water connection, will the compressed air blow out all my fresh water lines? Should I open all my fresh water outlets at once or one at a time?
I'll be honest and confess I don't trust this to blow out all the water. I can drain the FW tank and use this to blow the lines, but I'm still concerned about any water in the pump, the accumulator tank and the line between the accumulator and the first faucet, which it seems to me this would not blow out, so I always add a little antifreeze to the FW tank and run it through the pump, accumulator and first faucet, then dump some AF in each of the traps. I generally start with the valve closest to where I hookup the air, in my case the outside shower, then go inside and open the other valves, but I leave them open as I go so it probably doesn't matter. Keep blowing (at low pressure) until you're blowing air out of all faucets.