flushing fresh water tank

Here are the instructions straight from Forest River's website. If you go to their homepage, an owner's manual, quite generic, is available in PDF format.

This is a cut and paste from that document.

Sanitize the System:
• Prepare a chlorine solution using a gallon of water and ¼ cup of liquid household bleach, (5%
sodium hypochlorinate solution.) Use one gallon of solution for each 15 gallons of tank capacity.
• With an empty tank and all faucets and drains closed, pour the solution into the fresh water tank.
• Completely fill the tank with fresh water.
• Switch on the water pump. Open all faucets one at a time until all air is purged and the water
flows freely.
• Again, add fresh water to the tank until the water level reaches the fill spout.
• Allow the solution to stand in the tank, undisturbed, for at least 3 (three) hours.
• Drain the system by opening all faucets and the fresh water tank drain valve, while flushing the
system with fresh water of drinking quality.
• Continue flushing the system, allowing the water to flow for several minutes.
• Close the tank drain valve and all faucets. Refill the system with water of known drinking quality

tsunami wrote: It is just an inexpensive plastic hose valve.