[Javi]

Originally Posted by MattE303

Javi, where we live sounds similar to your area; the temps only go below freezing a handful of times during the winter, and we use our trailer year round, so I almost never fully winterize, but I'm thinking to be on the safe side for those handful of extra cold nights, I'd like to do something similar to your routine. I bought a fitting for blowing out the lines; what air pressure is high enough to be effective, but still safe for the plumbing?

30-35 psi is plenty