XHose for Water Supply

I had two drinking water safe hoses that were flat. one cloth type was totally flat and developed leaks at the edges. the other was sort of normal hose type material and was oblong so it did take up less room to roll it up. those expanding hoses you see on TV seem to me to be a bad idea. turn the water off and they automatically recoil.?? with no backpressure filling a tank souldn't expand?
bumpy

They are alright for filling the tank, but in general they don't last very long when kept under constant pressure. I have a fold flat hose which can then be rolled up (similar to a fire hose). They generally will have a higher pressure rating but I only use it to fill the tank, not for constant pressure. So it has lasted me about 10 years or so.

If you're going to use it for potable water, I'd get one that is made from NSF listed materials. You might want to consider the pressure rating a hose has, especially if you plan to have a regulator at the city water inlet (as opposed to at the faucet). Some hose materials can sometimes impart an offensive taste to the water and some can be bothered more than others by this.

I seem to recall seeing a collapsing type hose somewhere in the past year that was NSF listed and had a good pressure rating. I think it was at an industrial hose supplier. Maybe one of those type of suppliers may have something that will work.

One problem I see with those collapsible and flat roll up hoses is that they must always be fully extended regardless of how close the water spigot is to your RV fresh inlet. The site we're on right now for instance, I even have part of our 10' hose coiled up under the coach.

This flat, roll up potable water hose by American Specialty may be what you're looking for.

Not sure if it wold be a problem for an RV, but seems like those hoses would also have quite a bit of friction loss over a standard hose. This translates into a lower flow rate and less satisfying shower!

We had two of those hoses at the house and they don't like having the water capped off. They burst very easy and quick.

Does the label state "Approved for potable water use"? If not, no. If it does, use it.

Post from April

I'm always leery of anything 'as sold on TV'. It's usually a great idea but a poorly-made product. If this is just for filling your tank, fine, but if it's for your city water supply, I'd be careful.