questions.... I have them.. :D
1) the fresh water tank fill on my motorhome is the kind where you have to hook up a hose and have pressure on it, to fill, just like the "city water". I would prefer to have a gravity fill so w...
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That fitting would be fine for blowing out the lines. I assembled a veryd similar one from various adapters and fittings from Home Depot (male garden hose to 1/2" NPT, 1/2" NPT to 1/4" NPT bushing, 1/4" air quick connect fitting).
There's nothing particularly noteworthy about blowing out the water lines for winterization; just take your time and go through everything a couple times to get as much water as possible out (operating one tap at a time). Obviously it's also necessary to drain the water heater and fresh water tank, etc. I generally set the compressor regulator at 40 psi, but the actual pressure when the lines are being blown out drops a whole lot, and that's just fine.
Adding a gravity fill might be hard depending on where your water tank is. You need to have the fill port higher than the water tank, and if it's directly under the bed (for example) that can mean finding a way to get the gravity fill port up perhaps five or six feet above the ground...and having to put water in from that point as well. If you don't have water pressure available, it is possible to pump water into the tank with a winterization inlet port by setting the valves to winterize and opening the fill valve.
There's nothing particularly noteworthy about blowing out the water lines for winterization; just take your time and go through everything a couple times to get as much water as possible out (operating one tap at a time). Obviously it's also necessary to drain the water heater and fresh water tank, etc. I generally set the compressor regulator at 40 psi, but the actual pressure when the lines are being blown out drops a whole lot, and that's just fine.
Adding a gravity fill might be hard depending on where your water tank is. You need to have the fill port higher than the water tank, and if it's directly under the bed (for example) that can mean finding a way to get the gravity fill port up perhaps five or six feet above the ground...and having to put water in from that point as well. If you don't have water pressure available, it is possible to pump water into the tank with a winterization inlet port by setting the valves to winterize and opening the fill valve.
