Only hot water side works

campigloo wrote:
I know you’ll find this hard to believe because I did too. I had a similar problem. Hot water flowed but not cold. I took the toilet supply apart and there was white plastic grains that looked like coarse sand; same stuff in the kitchen. I was told to wash the inside of the water heater. Huh? I replaced the anode rod while I was at it. I had to rinse it several times. It may not be your problem and it doesn’t make a bit of sense I know, but it worked.

That was exactly it, thanks! I did it about a week ago though just wanted to have my feedback on the matter encase anyone else has this problem.

I know you’ll find this hard to believe because I did too. I had a similar problem. Hot water flowed but not cold. I took the toilet supply apart and there was white plastic grains that looked like coarse sand; same stuff in the kitchen. I was told to wash the inside of the water heater. Huh? I replaced the anode rod while I was at it. I had to rinse it several times. It may not be your problem and it doesn’t make a bit of sense I know, but it worked.

whatinZamzoo wrote:

IB853347201 wrote:
When you remove the filter does the water pressure return to normal on the hot and roadside?

problem is not connection outside. I ran w/o filter.

Old-Biscuit wrote:
Hot water heater is FED from COLD water Line.........
Is Water Heater BYPASS OPEN?

DO you have a 'FILL' Valve?
Is it OPEN?


If you turn Pump ON....does Hot/Cold Flow water?

Ya, I find it extremely odd that the hot water is just cold water fed through it having my issue.
I've never touched any water heater valve till today. The cold water input, but this was after the problem occurred & I put it back into the original position after diagnose. I didn't see any other valve. I will try the pump tomorrow

What you have labeled as the sink line most likely feeds all of your cold side in the camper after that "T". Is there any chance somebody put a check valve in after that "T"? Your symptoms mimic what you get when the check valve on the water heater out fails.

If not that try unscrewing the screen from the end of your faucets to see if they got plugged by debris. Though I'm not sure how that would affect the toilet.

Sounds like something got out of the new filter like maybe a piece of the plastic wrapping and went into the cold side. The good thing is the T-fitting you showed can just be unscrewed and taken apart. I would disconnect the cold side of that fitting and see if water comes out. Use the water pump so you can shut off the flow as needed.

IB853347201 wrote:
When you remove the filter does the water pressure return to normal on the hot and roadside?

problem is not connection outside. I ran w/o filter.

Old-Biscuit wrote:
Hot water heater is FED from COLD water Line.........
Is Water Heater BYPASS OPEN?

DO you have a 'FILL' Valve?
Is it OPEN?


If you turn Pump ON....does Hot/Cold Flow water?

Ya, I find it extremely odd that the hot water is just cold water fed through it having my issue.
I've never touched any water heater valve till today. The cold water input, but this was after the problem occurred & I put it back into the original position after diagnose. I didn't see any other valve. I will try the pump tomorrow

Hot water heater is FED from COLD water Line.........
Is Water Heater BYPASS OPEN?

DO you have a 'FILL' Valve?
Is it OPEN?


If you turn Pump ON....does Hot/Cold Flow water?

When you remove the filter does the water pressure return to normal on the hot and roadside?