Onboard water system pumps water out the shore input

[gdbudlong]

When I am not connected to a shore water line and I turn on the onboard pump to use the fresh water tank, water streams out of the shoreline input. It does not occur the other way around. In other words, when I am connected to shoreline water it is not leaking into the freshwater tank. Please help. Do I have a bad valve at the shoreline input where it says "Tank Fill" and "Tank Bypass"? Thank you.

[Empty_Nest__Soo]

You could also use a quick-release water hose fitting. Put the part with the check valve on the fresh intake. You could also put the part with the nipple on the end of your white hose and not have to thread the hose on again.

Wayne

[Dutch_12078]

FormerBoater wrote:

Dutch_12078 wrote:

FormerBoater wrote:
Or, if you are really in a hurry you can go to a hardware or big box store, buy a ball valve and the adapters and nipples needed to accept the male fresh water hose(female hose pipe interface) and a male hose fitting to plug into the coach city water supply.

Ball valve on when connected to city water, off when you want to use the on board fresh water.

Just did a 10 day trip and did not have to use the spare!

Bought the parts, the glue and made 2.

Works like a charm and I think I spent about $12.

Seems like a lot of work and extra expense when a ready made hose valve from Walmart works just fine for less:

Metal Hose Shut Off

Even cheaper if you buy one of the plastic valves.

I think you will find that most Walmart stores will not have this item in stock....none within 50 miles of my location.

But you are correct, I am still recovering from the all the extra work to assemble my devices and I am hopeful that I can pay off the $12 in the near future...working closely with the lender as always.

Off hand, I don't recall being in any Walmart in recent years that didn't have that valve or a similar one in the yard/garden department. If they don't though, I'd bet your local Home Depot, Lowe's, Menards, etc. does. Even the common 'Y' hose connectors will work. Many campground stores even carry them. The point is that there are commonly available fixes for the OP's problem that don't require any assembly and cost less.

[FormerBoater]

Dutch_12078 wrote:

FormerBoater wrote:
Or, if you are really in a hurry you can go to a hardware or big box store, buy a ball valve and the adapters and nipples needed to accept the male fresh water hose(female hose pipe interface) and a male hose fitting to plug into the coach city water supply.

Ball valve on when connected to city water, off when you want to use the on board fresh water.

Just did a 10 day trip and did not have to use the spare!

Bought the parts, the glue and made 2.

Works like a charm and I think I spent about $12.

Seems like a lot of work and extra expense when a ready made hose valve from Walmart works just fine for less:

Metal Hose Shut Off

Even cheaper if you buy one of the plastic valves.

I think you will find that most Walmart stores will not have this item in stock....none within 50 miles of my location.

But you are correct, I am still recovering from the all the extra work to assemble my devices and I am hopeful that I can pay off the $12 in the near future...working closely with the lender as always.

[gdbudlong]

Thank you all. You are the greatest!! I'm fairly mechanically inclined (not quite MIT material, but respectable.) I will employ your remedies.

Again, thanks.

[Dutch_12078]

FormerBoater wrote:
Or, if you are really in a hurry you can go to a hardware or big box store, buy a ball valve and the adapters and nipples needed to accept the male fresh water hose(female hose pipe interface) and a male hose fitting to plug into the coach city water supply.

Ball valve on when connected to city water, off when you want to use the on board fresh water.

Just did a 10 day trip and did not have to use the spare!

Bought the parts, the glue and made 2.

Works like a charm and I think I spent about $12.

Seems like a lot of work and extra expense when a ready made hose valve from Walmart works just fine for less:

Metal Hose Shut Off

Even cheaper if you buy one of the plastic valves.

[FormerBoater]

Or, if you are really in a hurry you can go to a hardware or big box store, buy a ball valve and the adapters and nipples needed to accept the male fresh water hose(female hose pipe interface) and a male hose fitting to plug into the coach city water supply.

Ball valve on when connected to city water, off when you want to use the on board fresh water.

Just did a 10 day trip and did not have to use the spare!

Bought the parts, the glue and made 2.

Works like a charm and I think I spent about $12.

[bluwtr49]

Effy wrote:
Why would you turn on the pump when connected to water? The pressure from the water connection means you don't need the pump.

Commonly done. I always leave my pump on to pick up the slack if park water pressure fails or drops.

[mockturtle]

I agree it's the check valve. If you can't fix it right away, just get a screw-in plug.

[jyrostng]

sometimes all you need to do is use a pencil eraser, turn off the pump, turn on a hydrant to relieve the pressure, pop the check valve ball built into the water connecter with the eraser and reseat it. It has a spring behind it and sometimes when you disconnect the water line, it won't reseat it's self correctly.

[Ivylog]

In my MH the check valve for my power hose reel is hard to get at so after several times of replacing, I bought one of these. It never leaks if I remember to put it in the hose end.

Ebay for $4.75 delivered.

[JK3045]

I agree with Dutch ...no need to cancel a trip or anything. Mine is so easy to replace ,I carry a spare all the time and have had to use it in the past.

[Dutch_12078]

The quick fix until you can replace the inlet, is just pick up either a screw in hose plug or an inline hose shut off valve at Walmart or a hardware store.

[ArchHoagland]

More info please....

[DSDP_Don]

"gdbudlong".......The check valve should be just behind you're fresh/city water fill. It's there to do exactly what you're having an issue with. It closes the fresh water opening so that you're pump can build pressure and supply water to the rest of the coach.

Often, the valve gets debris in it and prevents it from closing completely. As stated above, sometimes it can be cleaned out or even whacked to get it to close. If not, you'll need a new one. They're inexpensive, just a pain to replace on some coaches.