Leaking grey tank? or what? - Dutchmen Owners

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Old 06-11-2017, 05:33 PM   #1
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Leaking grey tank? or what?

Our brand new Aerolite 298RESL now has a leak the grey water tank - we KNOW it's that tank because of all the bubbly water that was dripping on the ground and the tank was totally full - even though the indicator only showed 2/3 full. Anyway - we went back to the dealer (third time in what is now a 5 month old rig) and he insisted he could not find a leak - hubby suggested he fill it to capacity and - yes - then it started leaking.

OK - we absolutely HAD to make a short trip and the dealer suggested that we just leave the grey tank open for this trip and then bring it back in afterward - this worked ok as a temporary step.

Well - one of our camper buddies suggested it might (?) not be a cracked tank but something else up near the connections. or a vent (?). Anyone have any ideas? Or do you know someone at the Dutchmen HQ that we might talk to? is there a schematic of this somewhere online?e We hate to have the dealer take everything apart - and maybe something else get's compromised - and we never find a leak in the tank - especially since it leaks ONLY when SUPER full!

Help - we welcome any and all ideas!

TexasMarci
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Old 06-11-2017, 08:17 PM   #2
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Pic shows typical connection to waste water tank. While this shows side wall, same type is used for top wall.

So the seal around drain/vent line (could be one or more top connections) could be pinched, not sealing correctly. I would suggest they look at why tank monitor is not reading full first. Yes it could be overfilling and leaking out from that. A cracked tank is possible, but unlikely. If it was 15+ years old, maybe.

I would suggest you make them fix it right.
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Old 06-11-2017, 09:28 PM   #3
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ty. tyvm

ty for the pic and info - this is helpful - yes - it will go back to the dealer - again - this week
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Old 06-12-2017, 03:30 AM   #4
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Texas,

2014 Voltage 3895.

I just found this disaster today. Last day of 10 day stay at campground. Water was leaking from the forward Coroplast underbelly sheet after morning showers. The Coroplast was bulging down and full of water. I cut a small relief drain in it and drained many gallons of water.

After removing all items from the front storage compartment I saw no leaks from the bathroom drains and water lines. All was dry in the compartment below the bathroom. I then removed the rear wall and followed the black ABS bathroom grey water drain down to the top of the grey holding tank.

Disaster! I found the front bathroom grey drain pipe had completely sheered off the top to the tank. You could push it sideways and see directly down into the tank. Some water would enter the tank and some would pour outside and drain off below. Also about 18" to the drivers side the vent pipe going up was also sheered off the top of the grey tank.

I have no idea how or why this happened. I did not see any fittings. It looks like the pipes were glued into the top of the ABS grey tank. I don't have any idea how to repair it now. We go home tomorrow and I can take more time to figure it out.

Check the connections of the drain pipes to the grey holding tank. They may not be there!

Hope this helps
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Old 06-12-2017, 12:11 PM   #5
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thanks for sharing

great detective work! thanks for sharing!! - one person's problems may well help out another person with similar problems - wishing you good luck on repairs

and we have one thing to be thankful for - at least it's not the black tank!!

right?:
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Old 06-13-2017, 01:05 AM   #6
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Yes black water was my first terror thought but a quick smell test resolved it was not the black tank. At first I thought it was fresh water from the pressurized water system but after a day of watching it was clearly the grey tank. It was basically shower water from grandkids showers after an afternoon at the beach. (campground in Myrtle Beach, SC)

We are back home now and after unloading and cleaning everything up this week I will start figuring out now to fix it. I really want to know if the grey tank came loose to break both connections. The only way I know to check is to cut open the bottom coroplast and look. If it is still tight, then the repairs may be easier if I can use something like Plasti Mend Black and some ABS fittings. I may try to use a Fernco rubber fitting to give some flexibility to the pipe connection.

We will see. I will report back later with results. We have another trip planned for 6 July.
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Old 06-13-2017, 01:52 AM   #7
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Probably the most important troubleshooting step you can take is to remove the belly cover completely under the grey water tank.

I've gone it by first cutting a square section out so I could get a feel for where I was. Then figure out, by sticking your head and a flashlight up in there and figure out the dimensions of the grey water tank. If you're wanting to minimize the cut out...do your best to figure out where you think the corners are, then drill a 3/8" hole...carefully...just through the belly sheeting. Then stick about a 6" x 3/8" bolt up through the holes..and look again and see if you're at the corners. Adjust as needed and then use a razor knife to cut the sheeting and drop the section out.

Now you can get a good look at the situation, take pics, and if you want ask for suggestions on what others have done to rectify a similar situation.

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Old 06-13-2017, 02:02 AM   #8
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Pirate,

Thanks for your reply. Was just reading some of your posts on other topics. I have been in the holding tank area underneath before for the black valve cable replacement that everyone has to do. I will just reopen the coroplast in the same spot and go from there.

I am also looking at adding the boost pump to the generator fuel line. My 5.5 generator sound like the RPM is on a sine wave and it stops sometimes around 2-3 am. Always starts but I think after reading your post it may be a fuel draw problem.

Thanks for your help.
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Old 06-13-2017, 03:51 AM   #9
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rcpilot,

Anytime, that's what we're here for...to be helpful!!

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Old 06-13-2017, 12:58 PM   #10
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As shown in first pic these pipes connect to tank with just a rubber seal. Based on what you described the problem, I would suggest a riser pipe clamp. This will keep down pipe in correct location. If needed you could then clamp/secure the riser clamp.

Pic is general construction. Should help visualize how it works.
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