Frozen Pipe!

It went down below 20 degrees or so here in south Texas last night. That's the coldest we have seen while we were camping in our rig! We have seen colder temps but we weren't camping and the camper was fully winterized. Recently, we had been going to 28 or 29 degrees overnight but didn't see any issues in the morning. This morning we had no water at the kitchen sink on the hot side. We had cold water at the kitchen sink and hot and cold water in the bathroom at all faucets.

I was initially thinking we had an issue with frozen pipes in the hot water heater since it sits right at the outside wall but the hot water in the bathroom meant that wasn't the issue. We got inside the passthrough storage and then behind the wall to the "basement" where all the pipes and ducts run to check for any leaks and noticed that all the lines to every faucet in the rig run through there except for the kitchen sink. The kitchen lines go through the bottom of the rig and must run along the bottom and back up into the kitchen island. Along the way they probably connect to the low point drains that run outside. Even though we put insulation around the low point drains, the hot water side had frozen.

As the morning warmed up above freezing a bit, the water started to trickle and then begin flowing regularly to the kitchen faucet. We didn't see any sign of a leak in the passthrough, basement behind the wall or underneath near the low point drains. I think we got extremely lucky. We didn't realize that ANY water lines except the low point drains were outside the rig and therefore outside the heated areas. Lesson learned! We have to either drain the lines at the low point, completely winterize the lines or perhaps find some heat tape to wrap those particular lines so they can handle these cold snaps.

We have water sensors in the common areas where leaks occur so hopefully we can catch any leak early before much damage. Link here to Amazon (earns commission): https://www.amazon.com/dp/B07QP153GT/ref=cm_sw_r_as_gl_api_gl_i_ZRPM7FZVHWA2PG922S4R?linkCode=ml2&tag=braysaway-20

We also use a heated hose outside our rig which has kept the water flowing even in the extreme cold of last night. Link here (earns commission): https://www.amazon.com/dp/B01ABONB0A/ref=cm_sw_r_as_gl_api_gl_i_S49MD8VY3QRDABT97JYW?linkCode=ml2&tag=braysaway-20