Using stored water

Jim,

This is one of those things we cover well in orientation.

1) It is best to drain, flush and fill the water tank both when leaving for a trip and returning from a trip. There are variables of course. If the trip is short, like 10 miles or something then don't worry about the return leg. If it only has been a couple weeks since the last trip then don't worry about changing before you leave.
2) Basically the logic is you have to ask yourself, how long are you comfortable with using water stored as drinking water? Generally if is just a few weeks don't worry about it. If it has been months then for sure change it.
3) The tank should be stored full because air in the tank promotes bacteria growth. If you drain the tank you will get growths on the sides of the tank. You need to displace the air with fresh clean water. This is also true for driving. Often times we hear customers saying they don't want to carry the weight of water when driving so they drain the tank before hitting the road. This is a mistake because the heat from the hot pavement will heat up the water tanks and accelerate the potential issues. Try to have the fresh water tank as full as possible when traveling.

As for the gray tank, of course this is not being stored full and hopefully not being driven full either. A strong bleach water solution in the bottom of the tank sloshing around when driving works great.

Cary

 

I found out that water would be fine to be kept in the storage as long as your storage doesn't have any algae or rust. Personally, mine is really really clean so if I went on a trip and only used half of it then I won't drain it and still use that water until my next trip.

 

What about dropping some water purification tablets in the water tank? I don’t drink from the sink water but use the tablets to keep any growth down.

 

Attached is Pentair's recommendations on water tank maintenance for an RV. It is on the second page so page down to see it. Pentair makes Shurflo pumps.

https://www.pentair.com/content/dam/extranet/filtration/shurflo-MS-030-170_FiltrationChart.rC.pdf

 

Inspired by this thread, I just completed sanitizing our fresh water system. I used the instructions in the CI manual, adding one more fresh fill/flush to the procedure. Since I was already set up with all the hoses & whatnot

Passes the taste test! An easy Sunday morning project. I *highly* recommend this attachment on the end of your fresh water supply hose. Well worth the five bucks!
https://www.amazon.com/Camco-Shutoff-Efficiently-Eliminates-Backflow/dp/B0006IX850

 

Someone on the Airstream Forum just posted that while filling their fresh water tank with one of those attachments, the clear hose became detached and fell into their water tank. Several people on the Airstream Forum highly recommend the hose as well. But it only takes one unfortunate soul.

 

What does the Camco do on a teardrop that a regular hose does not?

 

We would not have that particular problem if the spout falls out of the valve - the clear plastic spout only goes in so far on a Camp-Inn filler, and would stick out an inch or two. But my spout doesn’t show any signs of coming apart anyways. Who knows what it will look like in 10 or 20 years...

(Edit - my comments are only about the Camco filler. there are competitors!)

For our teardrops, it gives you a shutoff valve right there where you’re holding the hose in the tank, and, a pretty clean connection into the filler. In my driveway I’m at the far end of a 25-foot food-grade hose when I’m filling. Before the spout it was either drop the hose end on the ground (not sanitary!) or, have a second person shut it off. Now it’s an easy one-person job. I did 4 fills today without going back to the hose bib on the house, and only a few dribbles.