There are basically 3 ways to get it into the tank
1: If you have a gravity feed (Most, but not all, do) use it
2: I hooked up the hoses, and ran about 40 gallons into my 80 gallon tank, then unhooked the ends of the hose and blew them out with an air compressor (like winterizing but on the hose) hooked back up to the motor home, poured in the proper amount of bleach (5/4 cup, yes I know that's bad form of stating it) and hooked back up to the spigot and ran the next 40 gallons in, Thus not only cleaning the tank, but blasting anything that took refuge in the hose
DO NOT HAVE FLITERS IN LINE WHEN YOU DO THIS
Remove the cartridge if it's an installed filter.. Replace when finished
Almost forgot method 3a/b
3a: If you use a hand pump to winterize, you can mix up a bucket of about five gallons of water, and the proper amount of bleach, about half way through filling the tank, unhook the hose (Turn water off first) hook up the winterizing pump and pump away,, When done rinse the pump out well (Rinse the bucket at least 3 times and then pump at least 3 gallons out on the ground with the pump)
3b: If you have a "Winterization kit" where the house water pump can be used to suck pink-stuff into the lines and tank... See 3A but use it instead, don't forget to rinse well.
Home is where I park it!