Question for "Blow Out the Water Line" gurus
I have always used the pink stuff, but am thinking of coming over to the dark side. (DW asks "why"?) My question: There is pex tubing from the water pump to the first junction going up to a faucet/...
Forum Discussion
KJINTF wrote:
Never could understand putting that pink stuff in anything
And many don't realize that there are two types of RV antifreeze. One is propylene glycol based and the other is ethanol based and is considerably cheaper which is why most vendors flog it. The cheap stuff will evaporate (toilet bowl), is flammable, will taint potable water systems (bad taste & odor) and can damage seals. The good stuff doesn't have the cons of the cheap stuff and is non-toxic and will lubricate seals and valves. If you shop around enough, you can find the PG based version at a decent price. I've found some antifreeze containers that don't list the contents and even if they do, it's often in small print and you have to look for it.
What I don't understand is why people will use the ethanol based antifreeze no problem but will come up with every reason why not to use air. As mentioned here, the air method must be done correctly.
We are on the air side of the fence. I use air to blow out the hot/cold low point drains and don't rely on gravity. I go between all faucets, valves & drain points several times until there is absolutely no hint of water. We don't use the FW tank so no worries there although I recently discovered that the FW tank is filling off city water and the pump check valve must be faulty.
