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-   -   Black & Grey valve trouble (https://www.airforums.com/forums/f444/black-and-grey-valve-trouble-2151.html)

camphost 10-18-2002 09:26 AM

Black & Grey valve trouble
 
:confused: RV service tech tells me that I need to replace the Thetford valve to my black water tank and rebuild the valve on the greywater tank. The valve on the greywater tank has the pipes glued in place which will make it too difficult to replace? Tech tells me that the valve can be rebuilt while still attached? The black water valve pipes are not glued so he will replace the valve..there is some sewage in the black water tank due to the arm pulling out of the valve and breaking off. Tech tells me he can come to me and perform this service for $425.00 does this sound fair and correct? Thats to rebuild one valve and replace the other.
What will happen when I open the valve panel to rebuild it on the black water tank if there is sewage inside the tank? The arm is completely broken off from inside the valve..does the rebuild kit come with a new arm? By the way I have already given Jacksonville RV half the money on my card for the job to be performed..guess its too late to back out and do it myself maybe I could negotiate to a fair price? Does anyone else have any experience with Jacksonville RV of Jacksonville, Fl..

74SovereignInt. 10-18-2002 12:04 PM

Thetford Valves
 
I took the plunge and worked on my valves when they were stuck. Check out the link below and jump in. Four screws should allow you access to the inner workings and I understand that repair kits are available. I just needed to clean them out and replace the gaskets due to damage during dissassembly. You should be able to repair them yourself. Let me know how it goes.

https://www.airforums.com/forum...&threadid=1965

Inland RV Center, In 10-18-2002 01:10 PM

For $425.00, they should replace both valves, put you up in the finest "hotel," AND, pay for your meals at the best place in town, or surrounding towns.


Andy
inlandrv.com
airstreamparts.com

74SovereignInt. 10-18-2002 03:35 PM

no kidding
 
As usual you're right on the mark Andy. With all the improper grousing against parts suppliers going on in other threads, > $400.00 for a couple of valves seems high to me.

Camphost, if you feel up to it go ahead and try the repair yourself. My thought is that you'll find it easier than you think. If you'd like, send me a private message on how we can hook up and I'll talk you thru my experiences with it.

James Schmidt 10-19-2002 04:36 AM

Go for the do-it-yourself route. I rebuilt both my valves and it was not big deal. Parts are readily available and no special tools are required. Gaining access to the valves can be a challenge. I found it was best to cut a large access hole in the belley skin and put the trailer up on a ramp to get more clearence. Once that is done the rest is a snap.
Good luck and let us know if you need some advise.

COArgosy78 06-24-2004 09:28 AM

Yuck!!
 
Bringing this post back as husband has been contemplating replacement of both black/grey dump valves for a year. We just returned from a short trip in the Minuet and when we stopped at dump station, before he could attach hose, the black tank dumped sewage on ground. So, we know it needs doing, the question for him is pay someone or try this himself.

He purchased 2" waste valve replacements made by Valterra (part #T1002
VPM) at Camping World. Not sure if these will work. Also, to him it looks like the rear belly pan must drop in order to reach the valves? That seems like a major job to him, which is why he is contemplating taking it in for the work. Can someone help set us straight on how hard this task is, amount of time involved, whether he purchase correct replacement parts, and if belly pan must be removed? Also, if you have any tricks of the trade to impart that will make job go smoothly, that would be much appreciated. THanks!!!! :eek:

TomW 06-24-2004 09:42 AM

Quote:

Originally Posted by COArgosy78
...He purchased 2" waste valve replacements made by Valterra (part #T1002 VPM) at Camping World. Not sure if these will work.

I doubt the Valterra valves will work without some sort of adapter plate. But from what I have read, you should be warned that they probably will not last anywhere near as long as your original Thetford valve.

If you plan to keep this Airstream, I recommend you use Thetford parts, as this may not be the last time you address this issue if Valterra parts are used.

Tom

71_safari 06-24-2004 12:32 PM

I took mine in and had it done after I bought my trailer. New toilet, new black tank valve and flange?, and cutting/repair of the belly pan to gain access. Cost $675 and about 1/2 of that was labor. Personally I thought it was a fair price, they did a good job and it works perfectly. Was worth it to me not to have to mess with it.

TomW 06-24-2004 01:20 PM

Repaired with...
 
Quote:

Originally Posted by 71_safari
I took mine in and had it done after I bought my trailer. New toilet, new black tank valve and flange?, and cutting/repair of the belly pan to gain access. Cost $675 and about 1/2 of that was labor. Personally I thought it was a fair price, they did a good job and it works perfectly. Was worth it to me not to have to mess with it.

Do you recall, or can you check on whether they used Thetford parts?

COArgosy78 06-24-2004 05:22 PM

Replacement valves
 
OK - so NO on the Valterra valves. Can you still get Thetford from AS dealers? Or is there one that is comparable? And it sounds like the bellypan (or at least back part) must drop in order to repair/replace valves? So that means rivets and rivet tool and correct sealant, ect.? Are all the AS trailers going to be the same as far as this job, so that if he attempts self-repair, we can ask for guidance? Thanks

TomW 06-24-2004 06:47 PM

Quote:

Originally Posted by COArgosy78
OK - so on the Valterra valves. Can you still get Thetford from AS dealers?
...Are all the AS trailers going to be the same as far as this job, so that if he attempts self-repair, we can ask for guidance? Thanks

Thetford is still in business, and selling parts.

Many people, myself included, will be quite happy to help you with this repair. If you have questions, remember, pictures are MUCH better than words due to the various models.

This forum consists of a compodium of people who want you to enjoy your Airstream. Just ask, we are here to help.

Tom

COArgosy78 06-24-2004 08:24 PM

So, Thetford would be available thru most RV dealers? or just AS dealers? and does anyone know about where to cut an access panel to reach the valves in an Argosy Minuet. Price is feeling a bit more comfortable w/idea of self repair w/your replies and helpful wording! :) We will likely go tomorrow for parts (also need Suburban Thermostat Control) and would like to get at same dealer if possible. Thanks

Van 06-24-2004 08:31 PM

Quote:

Originally Posted by COArgosy78
So, Thetford would be available thru most RV dealers? or just AS dealers? and does anyone know about where to cut an access panel to reach the valves in an Argosy Minuet. Price is feeling a bit more comfortable w/idea of self repair w/your replies and helpful wording! :) We will likely go tomorrow for parts (also need Suburban Thermostat Control) and would like to get at same dealer if possible. Thanks



I just rebuilt the valves on my 6 metre Minuet, recently. I bought a Thetford valve rebuilt kit from the local RV supply store for $20 a piece and just dug in.

The hardest part is getting to the valves and such. The actual rebuilt is easy to do. If you take a look under your Argosy i would imagine that there is already some sort of access panel already there. Just remove that and get to it. I had to enlarge the work area on mine so i could work on it easier.

Safari Tim 06-25-2004 12:25 AM

So, what's the difference between the valterra and thetford? My trailer has a white connector with square numbs and I had to get an adapter so the hose would work on it. I have always thought it was a thetford to valterra adapter.

If that is the case, why would anyone want to keep the thetford during an upgrade if you need the adapter?

Also, I was thinking of getting a backup adapter and it looks like camping world quite carring it.

James Schmidt 06-25-2004 04:41 AM

If you have a Thetford valve(they will be white,Valteras are black) you will not need to change the whole valve and therefore do not need to worry about adapter plates. Repair kits are available at most camping supply stores and all Airstream dealers. They come apart easily(if you have room to work) and the kit contains all new seals, etc. The trick is to gain working room on the valve. I am not sure about your Argosy but in my case I cut a large hole in the belly pan under the tank to access the valve. The hole is about 3 feet square. I then fabricated a large plate out of galvanized metal to cover the hole when fininshed. I used a die grinder with a small cutting wheel and carefully cut a hole in the belly pan. When I was sure I was in the right location I enlarged the hole carefully, being sure not to cause damage to parts behind the pan. When repairs were finished I screwed the plate to the belly pan so that it could be easily removed later if necessary. No sealant is necessary since the belly area needs to breathe. It helps to have the trailer elevated to work under it. For this I fabricated a long ramp out of treated lumber and raised the trailer about 6 inches. It was only necessary to raise one side and that was the side that the sewer connections came out to the edge of the trailer. This is much safer than using jacks and jack stands. Once you get access to the valves, repairs are a snap.
good luck,

john hd 06-25-2004 06:48 AM

camphost

you want to keep your thetford parts they are better than the valterra valves.

here is how i repaired a cracked flange on my grey valve. https://www.airforums.com/forum...ead.php?t=4753

i did not replace the valve seals as they were in good shape.

you will see how i cut the hole to gain access to the valves, i used ramps just as james explained, the SAFE WAY!

in the other pics you can see 2 of the four stainless steel screws in the valve body you will need to remove to gain access to the innards of the valves.

the whole assembly is held in pace by rubber couplers and hose clamps you can usually remove it as a unit if the access hole is large enough.

thetford parts are widely available, and are inexpensive.

good luck on your project!

john

COArgosy78 06-25-2004 10:44 AM

One more question.....I am getting the idea that there is more than one type/style?? of Thetford drain valve depending on the model of trailer. Is it better to get the old valve off of our trailer before buying new, or can we just give type/year of our Argosy and the dealer will match it up w/correct valve size/model/whatever.

Inland RV Center, In 06-25-2004 10:56 AM

There are four different style Thetford valves. Unfortunately, all of them have the same part number on them, which makes that information useless. Back then Airstream only used Thetford products.

We can help you if you call, but we must have the trailer serial number. Assuming no previous owner off the wall modifications, we have the parts to put it back as it was built.

Andy

Ken J 06-25-2004 11:06 AM

Replacing the valves is pretty easy - on my 75, they could not be rebuilt, so I took off the back bumper, removed the rear-ward sheet and got the sawsall out - had those puppies off in about 5min or less. Then sent the valves to an A/S dealer and he sent me back exact replacements - put new valves, pvc pipe and new connector in - took about 1/2 - 1 hour and ended up with everything new from the tank on out brand new.

I spent more time trying to figure out how to fix the old valves than it took just to replace the whole thing.

Ken

COArgosy78 06-25-2004 11:14 AM

Thank you, thank you....will have Price read this when he gets home. By the way, I posted about replacing our water pump also - running hard and not much water flow. any recommendations on replacement brand?


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