de winterizing without bleach
the pink stuff has been in the water lines and I assume the water tanks. for 3 1/2 years. now we need to get it out! there were many ideas on this so I thought we would ask the experts. how should ...
Forum Discussion
anon125 wrote:
how many hours can the bleach solution safely be in the pipes?
thank you
Essentially forever because bleach breaks down over time.
Remember, you're not using full strength bleach (which would be 1 gal bleach for each 1 gal of water tank capacity). You're putting in a pretty dilute solution.
The recommended dosage is either 50ppm (1/4 cup bleach for each 15 gal of water tank capacity) or 100ppm (1/2 cup bleach per 15 gal capacity).
- For a 50ppm bleach solution, at least 4 hours.
- For a 100ppm bleach solution, at least 1 hour.
These times & recommended solutions from "Standards on Recreational Vehicles" (NFPA 1192, 2011).
