Water pump question

[Brian H.]

Hello all, new Oliver owner here. We have a legacy elite II hull # 1633. We are camping at a full hookup site connected to city water and accidentally turned the water pump on. Will this cause damage to the pump?

 

 

 

 

[topgun2]

Nope - but - I wouldn't leave that pump on.  In fact, I never even turn my pump on unless I'm about to actually use it.

Bill

[Ronbrink]

No, but here is an AI response to your question: If you turn on the RV's water pump while connected to city water, and assuming your city water pressure is sufficient, the pump will not operate because the city water's pressure will prevent it from turning on, and you will draw only from the city supply. However, if city water pressure is too low, the pump will kick on to supplement it by drawing water from the fresh water tank. A check valve in the system prevents the city water from flowing back into the tank or pump. 

 

[Steph and Dud B]

You should be fine.

[Brian H.]

Thanks for the responses, I feel better. We turned the pump on while looking for the bathroom light 😂. It is off now. 

[jd1923]

Because OTT installed restrictors on our incoming water lines, we find water pressure on the City Water line to be poor! Not sure if they're still doing this on new hulls. Still on my list to remove these (keep the backflow preventers, lose the restrictors).

I can turn on our water pump when connected to City Water to increase the pressure which as mentioned will not hurt the pump, so only better pressure. Not sure if this would work for all of you since the OEM water pump is entry level in its PSI and GPM. I've upgraded to a Remco variable speed pump, Made-in-USA, which can also run dry forever! 🤣

3 hours ago, topgun2 said:

In fact, I never even turn my pump on unless I'm about to actually use it.

We used to do what Bill suggests, however I found that we would forget to turn the pump back on and the system would lose pressure and maybe need to be bled again. Now we keep it ON all the time with two exceptions. It's always OFF whenever we leave the trailer to go somewhere, and I turn it OFF from bed when we go to sleep (the LED is bright)!

[topgun2]

1 hour ago, jd1923 said:

Because OTT installed restrictors on our incoming water lines, we find water pressure on the City Water line to be poor! Not sure if they're still doing this on new hulls. Still on my list to remove these (keep the backflow preventers, lose the restrictors).

@jd1923

Since our hull #'s are so close, I would doubt that there is much difference in how our water lines were treated.  Given this, I have never had an issue with city water pressure.  While I've never really checked to see if I have "restrictors", I'm guessing that you might find that there is something else going on.

Bill

[jd1923]

13 minutes ago, topgun2 said:

I've never really checked to see if I have "restrictors", I'm guessing that you might find that there is something else going on. Bill

Look here first (see picture). The OTT schematic shows only the backflow preventers, but both devices were installed in our hull. There was also another thread where one owner removed and cleaned both, having the same setup we have.

If it was an easy reach, I would have reworked ours 2 years ago! It's still on my list but we run 98% of the time on Fresh Water, so it's lower on the list. Running on our upgraded water pump we also get better PSI and GPM pumping from the fresh tank vs. City Water through the restrictor. This shows there isn't "something else going on."

It's crazy that OTT also put a restrictor on the Fresh Water inlet which only serves purpose in slow-filling the fresh tank! You cannot build pressure in that line anyway, since the fresh tank has an open overflow.

[Steph and Dud B]

4 hours ago, jd1923 said:

we find water pressure on the City Water line to be poor!

We have the same issue on hull #1150. 

 

2 hours ago, jd1923 said:

but we run 98% of the time on Fresh Water, so it's lower on the list.

Same here, something I've been meaning to look into. Eventually.