How to Winterize a TAB 320 LITE



Winterizing your TAB 320 LITE is critical to protect the plumbing from freezing temperatures. The basic process of winterizing is simple, and can be distilled into three key steps: 


  1. Drain the water out of the system. 
  2. Used compressed air to blow out the lines. 
  3. Fill the system with antifreeze. 


Jordan, a technical support specialist, walks you through these steps to make winterizing a breeze. Here’s a more in-depth look at winterizing your TAB 320 LITE: 


1. Drain all water from the plumbing system. This includes the hot and cold water lines, the gray tank, and the fresh water tank. Once everything has fully drained, close all drains and valves.


Tip: For extra protection, we recommend blowing out the water lines. While this step isn’t as critical as draining the system and adding antifreeze, it helps remove any trapped water that could freeze and damage your pipes. 


2. Connect an air compressor to the city water inlet and set the pressure to no more than 40 PSI. Open one faucet at a time and let air flow through the lines. If there’s any remaining water, you’ll see it spray out as the air moves through the system.


3. Locate the winterization hose. It is inside the cabin, under the driver's side dinette bench. You may need to remove these panel screws to access the hose. This hose is connected directly to the water pump, allowing it to siphon antifreeze into the system. Remove the cap and place the hose into a jug of RV antifreeze. Turn the diverter valve near the base of the hose so that the pump pulls from the winterization hose. 


4. Turn on the water pump and run antifreeze through all faucets and fixtures. Start with the kitchen faucet, running both the hot and cold sides until you see pink antifreeze. Repeat this process in the bathroom, and don’t forget the exterior shower. 


5. Back outside the unit, run antifreeze through the water heater drain valve. 


6. Flush the toilet to get antifreeze into the cassette, and pour some down the drain. 


7. Once these steps are complete, your TAB 320 LITE is fully winterized and ready for storage until your next adventure. 


We hope you found this video helpful! If you have any questions, feel free to contact our Customer Experience Team at tech@nucamprv.com.

How to Dewinterize Your TAB 320 LITE



Before heading out for the camping season, it’s important to properly dewinterize and sanitize your TAB 320 LITE’s freshwater system. Follow the steps below to safely flush out antifreeze and prepare your unit for use. 


Step 1: Drain Any Remaining Antifreeze 

  1. Open the gray tank valve and allow it to fully drain. 
  2. Once drained, close the gray tank valve. 
  3. Open both the hot and cold low-point drains to empty any remaining fluid from the water lines. 


Allow all lines to fully drain before moving to the next step. 


Step 2: Prepare the Sanitizing Solution 


Sanitizing your fresh water system helps eliminate bacteria and ensures safe water for use. A commonly recommended ratio from RV industry experts (such as Go RVing) is: ¼ cup of household bleach per 15 gallons of water 


At this ratio, the solution must remain in the system for 12 hours to sanitize effectively. A stronger bleach solution may be flushed through immediately, but the above ratio is recommended for thorough sanitization. 


Step 3: Add Bleach and Fill the Fresh Water Tank 


  1. Add the appropriate amount of bleach to your fresh water tank using the gravity fill. 
  2. Fill the tank completely with fresh water. 
  3. Monitor your tank level carefully to avoid overfilling. 


Step 4: Run the Sanitizing Solution Through the System 

  1. Turn on the water pump. 
  2. Run water through all faucets and fixtures, including: -Kitchen sink -Bathroom sink -Outdoor shower 
  3. Run water through both hot and cold lines at each fixture. 
  4. If using the recommended ratio, allow the solution to sit in the system for 12 hours. 


Step 5: Drain the System After sanitizing: 


  1. Open the hot and cold low-point drains. 
  2. Drain the gray tank.
  3. Drain the fresh water tank completely. 
  4. Once fully drained, close all valves and drains. 


Step 6: Flush the System with Fresh Water 


  1. Refill the fresh water tank with clean water.
  2. Turn on the water pump. 
  3. Run fresh water through all faucets and fixtures (hot and cold lines) to flush out the bleach solution. 


Tip: You may need to fill and flush the system multiple times to completely remove any residual bleach smell.



Step 7: Final Drain 


  1. Drain the system one final time if desired. 
  2. Turn off the water pump. You're Ready to Camp Your TAB 320 LITE is now fully dewinterized and ready for the camping season. 


If you have any questions or need assistance, contact nuCamp Customer Experience at tech@nucamprv.com.