How to blow out lines to winterize
Hello. I have always paid to winterized my RV but would really like to learn how to do it myself without just pouring antifreeze down the toilet and sinks. I would really like to use air on the lin...
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FIRST, drain the fresh water tank and open all "low point drains". Drain the water heater (inspect the anode rod, if equipped. You may want to buy a new one.). Empty and flush the waste tanks.
Be sure your air compressor has an oil and water separator in the air line. Use 3/8 inch air hose. close all drains. Set the compressor output to 55 or 60 PSI, then connect the air line to the shore water connection. Open and close each and every valve in the plumbing system several times. Don't forget the toilet or the outdoor shower. Remove the strainer from the pump, clean and dry it. Give the tank to pump line a shot of air to flush any water out. Run the pump until no water comes out. Put about a pint of RV antifreeze in each drain trap and in the toilet.
If there is any doubt in your mind, open the drain valves again. if water runs out, do it over, you didn't get all the water out!
I don't care what anybody says, I have done it this way for years, and it DOES work! Quite well, in fact.
Be sure your air compressor has an oil and water separator in the air line. Use 3/8 inch air hose. close all drains. Set the compressor output to 55 or 60 PSI, then connect the air line to the shore water connection. Open and close each and every valve in the plumbing system several times. Don't forget the toilet or the outdoor shower. Remove the strainer from the pump, clean and dry it. Give the tank to pump line a shot of air to flush any water out. Run the pump until no water comes out. Put about a pint of RV antifreeze in each drain trap and in the toilet.
If there is any doubt in your mind, open the drain valves again. if water runs out, do it over, you didn't get all the water out!
I don't care what anybody says, I have done it this way for years, and it DOES work! Quite well, in fact.
