RV refrigerator drain tube failure

Our Airstream Safari trailer became 9 years old last December when I discovered that our Dometic refrigerator drainage tube was falling apart behind the lower, vented, outside panel door of the refrigerator compartment.  The OEM white, thin plastic drainage tubing becomes brittle and falls apart, some say as early as 3-years old, undoubtedly accelerated by being near heat.

DSC002 Broken refrig drain tube

This was not an immediate problem because water only drains out of this tubing when defrosting the refrigerator or when condensation forms and drips from the cooling fins, and we live and camp in a relatively dry climate.  Typically, we can go 2-3 trips before needing to defrost the refrigerator.

(Defrosting for me goes quickly: I choose a warm afternoon and place a fan on the covered lobster sink directly across from the opened refrigerator door. I turn off the refrigerator, prop open the freezer door and, as the fan blows warm air into the refrigerator, I use chopsticks to gently nudge the melting ice sections off the fins and slide the chunks toward me and catch them in a Tupperware lid and deposit them on nearby plants.  Water that drips from the fins is collected in the condensation drain pan and flows through its bottom hole into the Dometic white drain pipe with cup, which connects with the drainage tubing on the backside of the refrigerator.)

After our third trip to the desert and coyotes this season,* it was time to replace this failed part, so I rustled up three feet of a more durable, vinyl plastic hose from our local West Marine store.

DSC126 PVC tubing from West Marine

Shields Rubber Series 162 Polyester Reinforced Clear PVC Tubing, 1/2″ ID (inside diameter).  I chose this tubing over the clear vinyl tubing because it is reinforced, can tolerate hot water (or being in a hot space such as near the boiler tube), more flexible and is slightly less expensive than their clear vinyl tubing.

DSC134 Shield's Rubber Series 162 PVC tubing

We saved the original Dometic drainage plug (seen above), which is valuable because it keeps critters out of the tubing and currently costs $11.99 to replace!

Some have found that the only way to gain access to where this OEM tubing connects to the Dometic drain pipe in the back of the refrigerator is to move, tilt or slide the refrigerator towards the trailer interior, which involves disconnecting the gas, AC and DC power, and foot screws!  In our case, I was able to reach this spot with my hand.  The old tubing was easy to remove because it disintegrated as I touched it!  The new tubing was attached to the protruding end of the Dometic white drain pipe seen below.  Larry held the pipe/cup from inside the trailer while I pushed the new tubing into place.

DSC142 Dometic drain pipe with cup

Cable (zip) ties were used to secure the tubing connection and to keep it away from the boiler tube seen below.

DSC150 Drain tube held by cable ties

Once the tubing reached the refrigerator compartment floor, it was brought to the opening of the space and secured by the OEM black vinyl coated loop hose clamp and Phillips head screw.

DSC153 Drain tube held by loop hose clamp

At this point, the tubing was trimmed and the Dometic drain plug was inserted.  Refrigerator water is now properly channeled and free to flow under the lower refrigerator access panel door and exit the trailer.  I am confident that this tubing will last for many years to come!

DSC158 Drain tube top to bottom

And future refrigerator defrosting with this upgraded pipeline* will almost be as much fun as surfing the tube!*

*This is a link to a YouTube video.

Summer spiders, flowers, stir-fry and Sonoran hot dogs

As our Airstream Safari rested between camping seasons, an orb-weaving spider spun a sticky, spiral-wheel shaped web* attached to the trailer’s rock guard and waited for the capture of its next prey.*

DSC_0013-2 Orb-weaver spider

On the eve of summer solstice, our night-blooming Queen of the Night (Epiphyllum oxypetalum) produced six blooms by our outdoor kitchen (See “A night-blooming interlude“, History Safari Expresso).

DSC_0487 Cereus & outdoor kitchen

Under the Full Buck Moon,* our pitahaya (Hylocereus undatus) sent up into the heavens its first spectacular bloom over the patio pergola (See “A pitahaya summer interlude,” History Safari Expresso).

DSC_0025 Pitahaya bloom 2015

Under the pergola, Larry stir-fried meat, then vegetables, in a wok over a 250,000 BTU burner and then tossed them with pan-fried Cantonese-style egg noodles that were golden “brown, firm and crispy on the outside, and yellow, moist and soft on the inside, a combination of texture that is classically Chinese.** (See “How to make chow mein with Ken Hom“.*)

DSC_0032 Stir-frying in patio kitchen

For my turn in our outdoor kitchen, I made my version of the Sonoran hot dog, based on a recipe adapted from Robb Walsh’s The Tex-Mex Grill and Backyard Barbacoa Cookbook.

DSC_0048 Sonoran hot dog prep

A Sonoran-style hot dog is a grilled bacon-wrapped hot dog placed in a toasted bolillo (Mexican-style bun) and topped with your favorite condiments.  I prepared bowls of chopped tomato, onion, avocado, grated cheese, refried beans, and fresh salsa verde (made by Larry).

DSC_0049 Sonoran hot dog prep 2

The grill was fired up and the dogs were cooked until the bacon was crispy (about 7 minutes).

DSC_0054 Cooking Sonoran hot dogs

The bolillos were toasted and the pocket was lined with refried beans, avocado and cheese.  The cooked dog was placed inside and topped with chopped onions, tomatoes, salsa verde and squiggles of a blend of mayo, Tabasco, and lime (or lemon) juice.

DSC_0059 Hotdog drizzled with mayo-blend

Earlier this month, The Huffington Post said, “Make Sonoran Hot Dogs, And You’ll Never Go Back.”  The history of the Sonoran hot dog can be traced from Hermosillo, Sonora, to New York, Los Angeles, and Tucson.  Perhaps TBM has earned enough dietary credits to do another Tucson Sonoran Hot Dog test!

DSC_0057 Fiesta in a bun

The Sonoran hot dog is truly a fiesta on a bun!*

*This is a link to a YouTube video.

**Asian Vegetarian Feast: Tempting Vegetable And Pasta Recipes From The East, Ken Hom, William Morrow and Company, New York, 1988, p. 150-151.

Author’s note: For additional visual delights, see “A Peruvian Apple Cactus interlude,” History Safari Expresso.