Is there any reason why I shouldn't..

[Chicagoreef2016]

Use a hose from outside my house through my window to fill up my tank for the test fill and to check for leaks, etc. Or should I carry 80 buckets to fill up the tank?

Just making sure there isn't something in the hose that could mess with the tank later for whatever reason.

 

[Tripod1404]

Not really. As long as there is someone outside to turn the hose off.

You can also drain the tank by siphoning the water, with a hose, through the window, to your favorite tree.

After that I would rinse the tank with few gallons of RODI water to remove any minerals left from the tap water.

 

[Chicagoreef2016]

Not really. As long as there is someone outside to turn the hose off.

You can also drain the tank by siphoning the water, with a hose, through the window, to your favorite tree.

After that I would rinse the tank with few gallons of RODI water to remove any minerals left from the tap water.

Cool, thx.