Foamy Water
Now and then we experience foam in the water in all the fresh water faucets. We discovered why (in our instance) and wanted to share with the forum. Many posts regarding this occur when de-winteri...
Forum Discussion
Old-Biscuit wrote:Adventurer Buck wrote:
Thanks for the diagram. That all makes sense if all's working as designed.
So, it leads me to believe that we might have a bad check valve at some point in relationship to the holding tank..
Stages of Discovery:
- Disinfected, drained the holding tank and did not refill.
- Began running off city water with holding tank empty. Water was immediately foamy when not foamy before.Was not foamy before...prior to the disinfecting ?
Now foamy cause there is/was trapped air in system
- Filled the holding tank and the foam immediately stopped.
If the check valve in your rv water pump was bad (leaking) the water from city water connection would go thru pump, thru check valve and fill your fresh water tank cause it is pressurized from the city water. It would not suck air back thru the check valve.
Was not foamy prior to disinfecting when holding tank was full or partially full.
Cold water not foaming now after adding water to holding tank.
Hot water still bit foamy which I'd contribute to holding the previously foamy water and to stay that way until it had time to flush fully.
I understand your expalination of a bad check valve reverse filling the holding tank, yet that did not happen. The holding tank was empty until filled.
