water tank and low point valves

[BLTOH]

I dewinterized my mini lite 2104. I filled the water tank several times and emptied it out. Ran thru pump. Everything thing looks good. My question when I turned on faucets the water spurted and seemed like it had a lot of air bubbles. Is this normal?

I also found my lowpoint valves and want to put valves on them. Are this 1/2 inch?

[Emptypockets]

Yes you are dealing with air in the lines. A quick fix I have found - in the spring the first time I flush the lines I hook to city water. Then open the pressure relief valve on the top of water heater - keep it open until water starts coming out then close. Seems like since I started doing it this way there is less air in the lines. Some times there will be so much air in the lines the pump won't pressurize the system & it keeps running & running.

Can't address your question as to the size of the low point drain caps.

[grandpaofthree]

I am not sure of the answer on the low point valve diameter. Half inch sounds too small but don't count on that.

The air in the system after dewinterizing is normal in my experience. After 4 years with the same unit, I have found a routine that seems to work the best for me. After removing all antifreeze, opening valves to the water heater, and filling the tank with water, I open the cold and hot sides of the spigot closest to the pump before I turn on the pump. I then turn on the pump and let the first spigot run until the bubbles are gone, then I close both sides of the spigot and turn off the pump. Next I open the next spigot in line (all others remain closed) and follow the same steps. I repeat this until all spigots are running smoothly.

Now, if you are connected to city water, you shouldn't see any of the bubbles

[BLTOH]

Looks like it might be best I just hook up to city... I haven't filled the hot water tank yet as I had antifreeze in the fresh water tank to flush out.

[LadyWindrider]

The water lines in almost all newer campers are 1/2 inch PEX, with crimp style connections. You will need a crimp tool and some crimp rings, along with valves. Now if yours are capped, and you want to just spin some valves on, it would be 1/2 inch pipe thread.
Not sure, FPT (female pipe thread), or MPT, male pipe thread). Have seen both on new campers, but regardless, still 1/2 inch.

[BLTOH]

Originally Posted by windrider

The water lines in almost all newer campers are 1/2 inch PEX, with crimp style connections. You will need a crimp tool and some crimp rings, along with valves. Now if yours are capped, and you want to just spin some valves on, it would be 1/2 inch pipe thread.
Not sure, FPT (female pipe thread), or MPT, male pipe thread). Have seen both on new campers, but regardless, still 1/2 inch.

ok looks like they are caps that just spin on and all i was going to do is get the spin on valves. thanks a bunch ...i love this site it is very informative and helpful.