On Board Water Pump Question?
I've read posts about this before, but when searching can't land on any of them now. I'm looking for answers, if anyone else experienced this, what was YOUR cause.
Ever since we've owned our Outback (3 years now), the water pump turns on for a split second, pressurizing the lines and then shuts off just that quick.
For the last couple years, I thought it was because I don't tighten my water heater anode rod real tight and it does drip a little sometimes. Then I though it was the pressure relief valve on the water heater because the water heater is extremely hot. But here lately, the area around the water heater has been bone dry.
Now, I have narrowed it down to this. First, I am not connected to City Water. I run only off the water pump and fresh water. So no hoses connected.
Second, it happens ONLY when the water heater is turned on and hot. If the water heater is not on (cold) it never happens. And I've tested this out, several times now.
Next, I'm not loosing water anywhere. There are no leaks, the toilet is not filling up, the holding tanks don't fill up or anything, and it appears there is absolutely no usage from the fresh water tank.
I have noticed in the last few weeks, the pump will run for a split second and then shut off a bit more now than it use to. It's becoming more frequent. I notice it at night especially. Since we are camping in our back yard right now, sleeping in it every night, and sometimes have the water heater on, and sometimes off. This is when I really noticed the difference.
The other thought I had was the water pressure was increasing with the heat from the water heater, causing the water pump to leak backwards. But then that doesn't make a lot of sense either, because the water pump then attempts to turn on and pressurize again.
So, this one has me stumped. So figured after 3 years, I'd finally ask the question.
Remember, there are no leaks ... anywhere. The water heater is bone dry, the pressure relief valve is not popping. And it only does it when the water heater is on and hot.
Any suggestions?
Ever since we've owned our Outback (3 years now), the water pump turns on for a split second, pressurizing the lines and then shuts off just that quick.
For the last couple years, I thought it was because I don't tighten my water heater anode rod real tight and it does drip a little sometimes. Then I though it was the pressure relief valve on the water heater because the water heater is extremely hot. But here lately, the area around the water heater has been bone dry.
Now, I have narrowed it down to this. First, I am not connected to City Water. I run only off the water pump and fresh water. So no hoses connected.
Second, it happens ONLY when the water heater is turned on and hot. If the water heater is not on (cold) it never happens. And I've tested this out, several times now.
Next, I'm not loosing water anywhere. There are no leaks, the toilet is not filling up, the holding tanks don't fill up or anything, and it appears there is absolutely no usage from the fresh water tank.
I have noticed in the last few weeks, the pump will run for a split second and then shut off a bit more now than it use to. It's becoming more frequent. I notice it at night especially. Since we are camping in our back yard right now, sleeping in it every night, and sometimes have the water heater on, and sometimes off. This is when I really noticed the difference.
The other thought I had was the water pressure was increasing with the heat from the water heater, causing the water pump to leak backwards. But then that doesn't make a lot of sense either, because the water pump then attempts to turn on and pressurize again.
So, this one has me stumped. So figured after 3 years, I'd finally ask the question.
Remember, there are no leaks ... anywhere. The water heater is bone dry, the pressure relief valve is not popping. And it only does it when the water heater is on and hot.
Any suggestions?
