Sanitizing Fresh Water Tank

[jspencedc]

I bought Thetford's Fresh Water Tank Sanitizer to use in my travel trailer. The tank needs to be flushed several times in the process. Whether you use this product, or just bleach, where do you dispose of the water while flushing the tank? I have the camper at my home and the nearest dump station isn't convenient.

[gbopp]

I drain my sanitized water on my gravel parking area.

[krobbe]

I just empty the fresh water tank bleach water in the driveway. A 1/2cup of bleach to 30gal water isn't an environmental issue. The small amount of bleach dissipates quickly. A partially used bottle of bleach will lose it's strength over a few months so after sanitizing, I try to remember to take it to the laundry room to be used up.