After dumping the black tank at the camp site, I disconnected the city water and flush the tank through the sani-flush. I then asked DW to turn on the pump to add water & chemical into the toilet. She was shocked to see the water come from the tank was brown in color. We flushed and filled the FW tank with municipal water from home about a week ago and it was through a water filter. Would it turn bad within a week? There shouldn't be any chance of contamination from the sewage system. Any idea why is this happened ?

Just to add a little context to your question, is this new rig, or a new to you rig (used) or one you have had for a while with a new problem?

Do you use the same hose to flush the cleanout and fill the fresh?Rust into the system? Most RV'S use pex so little chance of contamination. I would sanitize the system with a bleach mixture.

Just yesterday I anted to find why my water smelled bad, so I drained and flushed my HW tank to see if it was coming from there. Sure enough, the water came out from the tank drain plug brown and stinky. It seems accordingly to my HW tank Manf instructions I should have been doing this each year before storage. I used a cut-off washing machine hose to insert into the tank and hit it with full water pressure. Lots of "stuff" came out to my surprise.

jerryjay11 wrote:Just yesterday I anted to find why my water smelled bad, so I drained and flushed my HW tank to see if it was coming from there. Sure enough, the water came out from the tank drain plug brown and stinky. It seems accordingly to my HW tank Manf instructions I should have been doing this each year before storage. I used a cut-off washing machine hose to insert into the tank and hit it with full water pressure. Lots of "stuff" came out to my surprise.There should not be hot water flowing into the toilet.

TKW wrote:After dumping the black tank at the camp site, I disconnected the city water and flush the tank through the sani-flush. I then asked DW to turn on the pump to add water & chemical into the toilet. She was shocked to see the water come from the tank was brown in color. We flushed and filled the FW tank with municipal water from home about a week ago and it was through a water filter. Would it turn bad within a week? There shouldn't be any chance of contamination from the sewage system. Any idea why is this happened ?Possibly a mud wasp got into your water tank through an overflow line or something like that. Once you added water the mud nest dissolves and turns the water brown. I would drain the tank. Catch some of the water in a clear container so you can tell if the water is dirty in the tank. If the water in the tank is clean you may have some rusting steel plumbed in your lines somewhere. Which shouldn't be there.

Where's this brown water come from? | Good Sam Community

pianotuna
Nomad III
Jun 21, 2019
How old is the water filter?
schlep1967
Nomad
Jun 21, 2019
TKW wrote:
After dumping the black tank at the camp site, I disconnected the city water and flush the tank through the sani-flush. I then asked DW to turn on the pump to add water & chemical into the toilet. She was shocked to see the water come from the tank was brown in color. We flushed and filled the FW tank with municipal water from home about a week ago and it was through a water filter. Would it turn bad within a week? There shouldn't be any chance of contamination from the sewage system. Any idea why is this happened ?

Possibly a mud wasp got into your water tank through an overflow line or something like that. Once you added water the mud nest dissolves and turns the water brown.
I would drain the tank. Catch some of the water in a clear container so you can tell if the water is dirty in the tank. If the water in the tank is clean you may have some rusting steel plumbed in your lines somewhere. Which shouldn't be there.
schlep1967
Nomad
Jun 21, 2019
jerryjay11 wrote:
Just yesterday I anted to find why my water smelled bad, so I drained and flushed my HW tank to see if it was coming from there. Sure enough, the water came out from the tank drain plug brown and stinky. It seems accordingly to my HW tank Manf instructions I should have been doing this each year before storage. I used a cut-off washing machine hose to insert into the tank and hit it with full water pressure. Lots of "stuff" came out to my surprise.

There should not be hot water flowing into the toilet.
jerryjay11
Explorer
Jun 21, 2019
Just yesterday I anted to find why my water smelled bad, so I drained and flushed my HW tank to see if it was coming from there. Sure enough, the water came out from the tank drain plug brown and stinky. It seems accordingly to my HW tank Manf instructions I should have been doing this each year before storage. I used a cut-off washing machine hose to insert into the tank and hit it with full water pressure. Lots of "stuff" came out to my surprise.
colliehauler
Explorer III
Jun 21, 2019
Do you use the same hose to flush the cleanout and fill the fresh?
Rust into the system? Most RV'S use pex so little chance of contamination. I would sanitize the system with a bleach mixture.
2chiefsRus
Explorer
Jun 21, 2019
Just to add a little context to your question, is this new rig, or a new to you rig (used) or one you have had for a while with a new problem?

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Where's this brown water come from?

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