I had responded assuming that you were filling the tank using a hose into the fill spout. Matt responded assuming that you were hooking up a hose to the city water hose fitting.
I'm not sure which you were doing but you now have two things to check out.

Emery Stora

> On May 27, 2017, at 1:51 PM, Ken Henderson wrote:
>
> Adam,
>
> Congratulations on you and the family's first GMC adventure. Glad it
> worked out well.
>
> The small fuel drip at, apparently, near the left front of the aux (front)
> tank, is very likely coming from the Liquid-Vapor Separator, or its
> plumbing. You probably recall from when you re-plumbed the fuel tanks that
> there is a hose from each tank which leads to a tee in the forward end of
> the left rear wheel well. From the tee there's another hose up to the
> little canister behind the sheet metal shield near the top of the wheel
> well. From there, there's another hose leading down and eventually to the
> carbon vapor canister on the frame rail beneath the passenger's feet. Any
> of that plumbing, with its numerous connections, or the vapor separator
> itself, can leak. Usually not badly because there should only be fuel in
> those hoses when the tank's completely full+.
>
> The best solution for those sewer line problems? A macerator. With that
> installed above the bottom of the frame, you can move the 3" dump connector
> to a less accessible/damageable location. Not to mention the many other
> benefits, such as eliminating the "stinky slinky".
>
> Ken H.
>
>
>> On Sat, May 27, 2017 at 2:54 PM, Adam Metzger wrote:
>>
>> Hey All-
>>
>> Just wanted to share that we FINALLY took the GMC out on the road and had
>> a great trip!
>>
>> From Austin to Garner State Park, about 180 miles each way. I thought I'd
>> skip the potential for stop and go traffic in San Antone by going through
>> Fredricksburg and Johnson City. I didn't realize how hilly and remote
>> that route actually was. If we had broken down we might still be there! I
>> had
>> to drop into lower gear on one hill, everything else was good. On the way
>> back we went through San Antonio, and the route was much, much flatter.
>> Holding 60-65 on the highway no issues. I even passed a 18 wheeler!
>>
>> A few things, of course. I finally filled the coach up fully. No
>> hesitation, took fuel like a vehicle should. When it finally clicked off,
>> of
>> course I checked under the coach. a small puddle of fuel, 4 inches,
>> dripping from the corner of the front tank, I'm guessing from filling it. I
>> don't know what the issue is, I'll get to it. it's not a continual leak,
>> so I'm supposing an issue with the sender gasket maybe? A loose hose clamp?
>> God I don't want to drop the tanks again.
>>
>> I do have a exhaust manifold crack, and it can be heard.
>>
>> I discovered a hole in the exhaust right under the door, so there's that.
>> This beast is loud. In fact, we've officially named her Grendel, the big
>> green grumbling beast that leaves a trail of blood and parts where ever
>> she goes. The water pump is quite loud when it kicks on, and the kids get a
>> kick out of Grendel's grumbling.
>>
>> Can anyone talk about the city water hook up and any known issues with
>> that? I hooked it up, seemed to be working fine, then noticed that water
>> was
>> pouring out of the hook up, like there was too much pressure, and then the
>> hallway was soaked near the closet. I then just used the tank fill from
>> then on. Seemed to work fine. Thoughts?
>>
>> Both AC's work almost too well, it got COLD in there. Ran the generator
>> for most of the way there, and for a few hours between having to be out of
>> the campsite and actually leaving the park to keep the fridge cold.
>> Worked like a charm. On the way home we had it on to run the AC unit and
>> then it
>> quit. I'm glad for the low oil switch. It burned a bit.
>>
>> I think I have an issue with my dump valve no closing completely. a funny
>> thing happened. I ran to fill her up at the gas station right outside the
>> park. It has a very steep drive. As I was leaving, I heard a scrape and
>> looking back, saw the cap to my dump tube and a nice trail of...waste across
>> the road.
>>
>> I pulled over and ran to grab it and put it back on...then washed my hands
>> for like 10 minutes. I then went to dump and there's a difference between
>> before and after I pug the valve, but it's really hard for me to get the
>> clip back on the handle. Is this normal? Like it's not closing and sealing
>> completely?
>>
>> All in all a good trip. I was absolutely dreading it, to be honest.
>> Waiting every second for that "sound" or "thump".
>>
>> Relationships are built on trust. Once I know I can trust her, I'll be a
>> lot more comfortable.
>>
>> now to get that carpet out!!
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> --
>> 1976 Palm Beach
>> Austin, TX
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

Adam,

Congratulations on you and the family's first GMC adventure. Glad it
worked out well.

The small fuel drip at, apparently, near the left front of the aux (front)
tank, is very likely coming from the Liquid-Vapor Separator, or its
plumbing. You probably recall from when you re-plumbed the fuel tanks that
there is a hose from each tank which leads to a tee in the forward end of
the left rear wheel well. From the tee there's another hose up to the
little canister behind the sheet metal shield near the top of the wheel
well. From there, there's another hose leading down and eventually to the
carbon vapor canister on the frame rail beneath the passenger's feet. Any
of that plumbing, with its numerous connections, or the vapor separator
itself, can leak. Usually not badly because there should only be fuel in
those hoses when the tank's completely full+.

The best solution for those sewer line problems? A macerator. With that
installed above the bottom of the frame, you can move the 3" dump connector
to a less accessible/damageable location. Not to mention the many other
benefits, such as eliminating the "stinky slinky".

Ken H.


On Sat, May 27, 2017 at 2:54 PM, Adam Metzger wrote:

> Hey All-
>
> Just wanted to share that we FINALLY took the GMC out on the road and had
> a great trip!
>
> From Austin to Garner State Park, about 180 miles each way. I thought I'd
> skip the potential for stop and go traffic in San Antone by going through
> Fredricksburg and Johnson City. I didn't realize how hilly and remote
> that route actually was. If we had broken down we might still be there! I
> had
> to drop into lower gear on one hill, everything else was good. On the way
> back we went through San Antonio, and the route was much, much flatter.
> Holding 60-65 on the highway no issues. I even passed a 18 wheeler!
>
> A few things, of course. I finally filled the coach up fully. No
> hesitation, took fuel like a vehicle should. When it finally clicked off,
> of
> course I checked under the coach. a small puddle of fuel, 4 inches,
> dripping from the corner of the front tank, I'm guessing from filling it. I
> don't know what the issue is, I'll get to it. it's not a continual leak,
> so I'm supposing an issue with the sender gasket maybe? A loose hose clamp?
> God I don't want to drop the tanks again.
>
> I do have a exhaust manifold crack, and it can be heard.
>
> I discovered a hole in the exhaust right under the door, so there's that.
> This beast is loud. In fact, we've officially named her Grendel, the big
> green grumbling beast that leaves a trail of blood and parts where ever
> she goes. The water pump is quite loud when it kicks on, and the kids get a
> kick out of Grendel's grumbling.
>
> Can anyone talk about the city water hook up and any known issues with
> that? I hooked it up, seemed to be working fine, then noticed that water
> was
> pouring out of the hook up, like there was too much pressure, and then the
> hallway was soaked near the closet. I then just used the tank fill from
> then on. Seemed to work fine. Thoughts?
>
> Both AC's work almost too well, it got COLD in there. Ran the generator
> for most of the way there, and for a few hours between having to be out of
> the campsite and actually leaving the park to keep the fridge cold.
> Worked like a charm. On the way home we had it on to run the AC unit and
> then it
> quit. I'm glad for the low oil switch. It burned a bit.
>
> I think I have an issue with my dump valve no closing completely. a funny
> thing happened. I ran to fill her up at the gas station right outside the
> park. It has a very steep drive. As I was leaving, I heard a scrape and
> looking back, saw the cap to my dump tube and a nice trail of...waste across
> the road.
>
> I pulled over and ran to grab it and put it back on...then washed my hands
> for like 10 minutes. I then went to dump and there's a difference between
> before and after I pug the valve, but it's really hard for me to get the
> clip back on the handle. Is this normal? Like it's not closing and sealing
> completely?
>
> All in all a good trip. I was absolutely dreading it, to be honest.
> Waiting every second for that "sound" or "thump".
>
> Relationships are built on trust. Once I know I can trust her, I'll be a
> lot more comfortable.
>
> now to get that carpet out!!
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> --
> 1976 Palm Beach
> Austin, TX
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

I had originally connected to the city water, and it seemed fine at first, then there was water coming out of the hose attachment, spraying out, like there was too much pressure. I then just filled at the potable water point and it worked fine. I would rather use the city water point if possible, just for ease.