As someone said the effect on SUN on the plastic hose plays a big part of why they are bad for drinking water less they are speciically drinking water rated.
If you are filling the storage tank, You let it run a bit and then fill the tank, water does not remain in the hose long enough or bad things to happen.
I've used my pocket hose several times now. The only problem I have had is with the quarter turn valve on teh end, it broke the first time I used it, HOSE worked good (Wal*mart Pocket Hose) but I do not use it all that often,, Basically when washing the RV 2x a year or when filling from a far of hydrent (also 2x a year).
But when I wash the MH I notice the hose wants to "Shink" a bit when I start spraying. Epically if Im using an old pressure regulator at the hydrant. (Which I do not do when washing) and the pressure drops a bit.
This can put strain on things best not strained.
NOTE: To the person who said "The ends blew off..." Where I'll be parked next week they warn you about the water pressure, well over 100PSI, they have measured and recorded in the park... Many hoses have been blown apart there, This is why Park-Regulator-----hose-------Filter (inside wet bay out of sun)-Hose-Inlet.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times