Fresh water Filter discovery!

[Sagecoachdriver]

While preparing our Forester for the next trip, I decided to drain the F/W tank, water heater and the low point drain. I refilled the F/W tank adding some bleach. I ran the pump filling the lines and water heater.
I opened the kitchen faucet for a few minutes and found that the cold water had no traces of the bleach and the hot had a very high level. So it appears the hot water tank and or line by-pass the filter ????? I used a pool chlorine tester.

[Flybob]

Sounds like you put some bleach in an empty FW tank then added water. When you turn on the water pump, it will tend to take the bleach from the bottom of the FW tank fill the WH as it compresses the air in it. Little to no air in cold water line so nothing flows here initially. So what happens is that all the bleach in the bottom of the FW tank goes into the WH and mostly fresh water goes into the rest of the system. You should always put about 1/3 of tank of fresh water in before adding any bleach.

[Sagecoachdriver]

Originally Posted by Flybob

Sounds like you put some bleach in an empty FW tank then added water. When you turn on the water pump, it will tend to take the bleach from the bottom of the FW tank fill the WH as it compresses the air in it. Little to no air in cold water line so nothing flows here initially. So what happens is that all the bleach in the bottom of the FW tank goes into the WH and mostly fresh water goes into the rest of the system. You should always put about 1/3 of tank of fresh water in before adding any bleach.

Bob, I fill the tank 2/3 full with fresh water and then using my 3 gallon blue jug add bleach to the 3gallons of water and add to tank. Then top off the tank. I then turn on the water pump filling WH tank and lines. I purge all the air from WH and lines and let faucet run prior to testing. I am aware of never adding bleach directly to an empty tank. RVing since 2003. Thanks.
Wish I could get a plumbing diagram!

[bubbles]

If you have a whole house filter onboard all cold water should pass through it regardless the coach water input (fresh water tank/shore water) to the faucets, water heater, fridge etc.. Typically the intersection for tank and shore water is close to the water pump. All the lines are pressurized the same and that's why there are check valves at the shore water connection and pump. Of course I believe this is typical and sometimes these units are anything but typical.

[Sagecoachdriver]

This may tell more???
Could the top blue line be from the shore water supply inlet or going to the water heater and by passing the water filter? Joshua Cavitt, HELP!

[bubbles]

Either way, I think I would have removed the filter cartridge to sanitize.

[youroo]

Originally Posted by bubbles

Either way, I think I would have removed the filter cartridge to sanitize.

In this Case I agree,if it was/is a Brand New unit OR a unit that has Not been used for a Time, With or Without water in the F/W tank, I would Let the Filter catch the ?? in the system! Carry On! Youroo!!

[bubbles]

Being as the whole house filter is basically at the input faucet/pump output and there is an in line filter between the holding tank and pump it doesn't appear whole house filter cartridge will trap debris for whole system. It may in fact prevent a proper disinfecting. Just a thought.

[RamblerGuy]

The carbon packing in the filter will remove the chlorine. Take the element out to sanitize.