question about freezing temps
Our highs are all in the low 60's early week, then mid 50's.. with lows right around 50 until Friday, then it is forecasted to be 29... Saturday back to 50 with the highs averaging mid 50's and lows a...
Forum Discussion
My experience is that the ball valves for the water heater bypass are the most critical.
Unless you have constant pressure in your water lines from the pump being on, or connected to outside water pressure, there is enough air space in the line for light freeze conditions most of the time.
Of course if you have a constant heat source that is a great help.
The ball valves trap a bit of water. They are a very hard plastic which has zero flexability. They hold a bit more than an ounce of water which can freeze quickly.
What causes damage is not the water freezing - it is the EXPANSION of water turning to ICE.
RV 'antifreeze' gets slushy at 30 degrees, freezes solid near 10 degrees. But it does not expand when it freezes.
Modern PEX used in RV's can take a little expansion. It is the joints, fittings and things like the ball valves that cannot take the pressure of expansion.
Unless you have constant pressure in your water lines from the pump being on, or connected to outside water pressure, there is enough air space in the line for light freeze conditions most of the time.
Of course if you have a constant heat source that is a great help.
The ball valves trap a bit of water. They are a very hard plastic which has zero flexability. They hold a bit more than an ounce of water which can freeze quickly.
What causes damage is not the water freezing - it is the EXPANSION of water turning to ICE.
RV 'antifreeze' gets slushy at 30 degrees, freezes solid near 10 degrees. But it does not expand when it freezes.
Modern PEX used in RV's can take a little expansion. It is the joints, fittings and things like the ball valves that cannot take the pressure of expansion.
