It seems like when I look at stuff online it talks about avoiding loops. I ordered the same length of hose that I measured on my trailers existing setup.
I only ask because every image on the package my new hose came in specifically shows this kind of loop. Do I need longer hose so I can get a loop in it between the regulator and tanks, or am I right to have just enough length to reach the tanks, with a few inches extra? But not anywhere near enough to loop the line?
In that particular application, although a loop is not necessary, the line, to me, does need to have a little wiggle room so that vibration does not pull the line tight and slowly loosen the crimped fitting ends.
If a loop (or dip in the line) was to be included in the setup, I would make sure its diameter is greater than the line’s minimum bend radius. Also, I would orient it so the loop cannot collect anything like oil or sediment which is not uncommon in propane cylinders.