Big Truck Freezing water

Hamman77 · Oct 8, 2015

Just curious, how do you drivers that have running water keep the water tank from freezing in winter? Leave heat on always? Or don't have water in winter?

Dynamite 1 · Oct 9, 2015

just make sure tank is not full when you park and then fill it with hot water rite before you leave. give it about 5 or 6 hours once you leave with the heat on and the cabinet door under the sink open and also the one where the pump is if they are not in the same place and all should be good. Been doing ours that way for years. I did occasionally at first use a heat gun on the metal part of the pump. just dont get to close.

tknight · Oct 9, 2015

My rv had heated tank electric warmers and I had a system where the engine water system connected to a coil around the hot water tank to warm the water never had to worry about cold water for showers after driving all day and with insulation on the tank it stayed warm over night

TeamCaffee · Oct 9, 2015

We have a small fan mounted under bench seat that can be turned on to help circulate the warm air from the inside of the sleeper to the water tanks and the lines. Before we had that we would set a small fan by the vents to keep the air circulated.

We also like Dynamite 1 says we keep the cupboard under sink open when in sub zero temperatures to keep lines from freezing.

davekc · Oct 9, 2015

We were lazy. I installed a incandescent bulb that when on, it would keep it from dropping below the freezing level. Worked when the truck was occupied or parked. Don't use a led because they don't emit the proper heat.

Hamman77 · Oct 10, 2015

Thx to all who gave suggestions. Only water for sink; no shower. Have Espar heater along with Rig Master. Was thinking leave Espar on while on home time with cabinet door open. I don't drink the water, just for washing hands and dishes.

xiggi · Oct 10, 2015

Dave's light bulb idea is grear, super low cost to install and operate.

davekc · Oct 10, 2015

xiggi said:
Dave's light bulb idea is grear, super low cost to install and operate.

We used it and just plugged the truck into shore power. If that isn't available, have to make sure your generators battery monitor is set to come on so you don't have dead batteries.

ATeam · Oct 12, 2015

With our big-sleeper truck, the heat was always on from the engine, generator or shore power. That kept water from freezing in the tanks and other items too; like medications, canned goods, bottled drinks, etc.

OntarioVanMan · Oct 12, 2015

2 winters ago my aux batteries froze up like -40 for 3-5 days....luckily T-King replaced it under warranty....was advised to leave Espar on low during cold snaps.....after all 1 gallon every 24 hrs is a cheap price to pay...also the QC won't freeze up either....