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Old 05-22-2015, 05:00 PM   #15
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Looked at the Valterra T58 at the local dealer. Looks too big to fit on my '13 Sport 22. Anyone have one of these on who could attach a picture?
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Old 05-22-2015, 05:21 PM   #16
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Originally Posted by perryg114 View Post
You can buy a bottle of seal lube at the RV store of your choice.

Perry


Perry,

Have you had good luck with that product? I have often wondered about it. I have heard you can put a little inexpensive cooking oil into the tanks too in order to lubricate the slide valve & seal - wonder if it is just as effective.

Brian.
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Old 05-22-2015, 06:40 PM   #17
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Goggle "Valterra T58". Worked like a charm on my '85 Sovereign. Slow leak in the gray valve. This fix, in place of replacing the whole valve which means opening up more than I want too.
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Old 05-22-2015, 08:25 PM   #18
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I just bought the entire Valterra assembly where you replace everything. Did that to mine and she's dry as a bone.

That being said, you want to "exercise" the valves a little when you drain it. Especially the black valve. Drain it out good, but then open the gray and run the black in and out a time or two. The idea is to not get any particulates trapped in the guideway.

The way these valves work is that you basically have a three sided slot that is rubber faced. The valve is nothing more than a plate that slides in and out of this three sided slot (top, bottom, and back, with the face open toward you to pull it out). If you get junk in that slot, it will mess up the water tight seal. So I always empty the black tank first. When it's good and done (I have a clear adapter so I can see if it's done), I then drain the gray and work the black valve a couple of times. Same thing with the gray, I'll work it in and out a few times as it's getting close to done.

It's worked well so far. But it sounds like your seal isn't sealing (bad pun I know....)

Best of luck
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Old 05-23-2015, 07:18 AM   #19
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Goggle "Valterra T58". Worked like a charm on my '85 Sovereign. Slow leak in the gray valve. This fix, in place of replacing the whole valve which means opening up more than I want too.
I just picked one of those up last winter when in Florida. Main reason I put it on is that sometimes I have the problem of a cup or so of gray water pouring out when I remove the cap. Could be due to the gray valve not closing completely, or maybe just residual gray water in the piping + different slope at the next RV site.

This way, I only pull the added third valve after we have the drain hose hooked up at our new site so no surprises when removing the cap!

Seems to work fine. I was a bit concerned about the added valve sticking out too much, especially asmI also had to add the Thetford to Valterra adapter which adds another inch or so, but it seems ok.

I picked up the Valterra T58 at a Camping World store.

Brian.
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Old 05-23-2015, 09:48 AM   #20
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Originally Posted by Wingeezer View Post
I just picked one of those up last winter when in Florida. Main reason I put it on is that sometimes I have the problem of a cup or so of gray water pouring out when I remove the cap. Could be due to the gray valve not closing completely, or maybe just residual gray water in the piping + different slope at the next RV site.



This way, I only pull the added third valve after we have the drain hose hooked up at our new site so no surprises when removing the cap!



Seems to work fine. I was a bit concerned about the added valve sticking out too much, especially asmI also had to add the Thetford to Valterra adapter which adds another inch or so, but it seems ok.



I picked up the Valterra T58 at a Camping World store.



Brian.

Great info. So you had to add an adapter to make it fit and clear everything else in its way? If you get a chance to take a pic that would be great. Thanks.
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Old 05-23-2015, 10:05 AM   #21
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Great info. So you had to add an adapter to make it fit and clear everything else in its way? If you get a chance to take a pic that would be great. Thanks.
Yep, the only reason I needed the adapter is that Valterra "ears" or "lugs" or whatever you call them are not compatible with the similar but not identical Thetford equivalents.

There were no clearance issues or anything with our 2005 Classic 30. I was just concerned that the whole contraption might stick out too far and look unsightly and be more vulnerable to damage, but it is not bad at all.

I don't know why AS don't use Valterra as it seems to be the "RV standard" these days and is much easier to find at Walmart etc.

Our trailer is in storage quiet a distance from our house, but I will try to get a pic next time I am out there.

Brian.


PS - I suppose the added valve could also be handy if one of the actual valves ever jammed in the open position.

In reality though I guess what is more likely to happen is that one of the handles pulls off and the valve stays jammed shut. In that case the extra valve is no help at all - at least until you can manage to get the working valve open.

Something I have always dreaded happening - especially on the black tank! I really don't know how I would deal with that - I suppose I would try to get the black tank pumped out from the top, then cut and access hole in the belly pan and remove the defective valve assembly. Hope it never happens!
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Old 05-23-2015, 01:04 PM   #22
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One of my valves had a major seal problem. Somehow the rubber seal stuck out enough that the blade caught it and then it would not close all the way. I expect something got stuck in it and it was forced shut. This was on the black water side which is worse than a gray water leak. Also the seals can crack over time. They will eventually wear out.

I think the seal lube is glycerine which is a water soluble lube. I rebuilt mine a while back and coated everything with silicone grease. So far so good. Can you get to the valve from the inside with your hand? They make a pipe thing with a right angle hole in it that you put on a garden hose. You stick it up the dump pipe and rotate the jet so it cleans all the junk out of the valve body and seal area.

Perry
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Old 05-23-2015, 06:18 PM   #23
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Originally Posted by Wingeezer View Post
Yep, the only reason I needed the adapter is that Valterra "ears" or "lugs" or whatever you call them are not compatible with the similar but not identical Thetford equivalents.

There were no clearance issues or anything with our 2005 Classic 30. I was just concerned that the whole contraption might stick out too far and look unsightly and be more vulnerable to damage, but it is not bad at all.

I don't know why AS don't use Valterra as it seems to be the "RV standard" these days and is much easier to find at Walmart etc.

Our trailer is in storage quiet a distance from our house, but I will try to get a pic next time I am out there.

Brian.


PS - I suppose the added valve could also be handy if one of the actual valves ever jammed in the open position.

In reality though I guess what is more likely to happen is that one of the handles pulls off and the valve stays jammed shut. In that case the extra valve is no help at all - at least until you can manage to get the working valve open.

Something I have always dreaded happening - especially on the black tank! I really don't know how I would deal with that - I suppose I would try to get the black tank pumped out from the top, then cut and access hole in the belly pan and remove the defective valve assembly. Hope it never happens!

Further to this post earlier today, I was out at our trailer this afternoon and took a couple of pics of the extra Valterra valve easily installed where the drain cap normally goes.

Someone asked for the pic, but I never seem to have success trying to post pictures on the forum. If anyone needs the pics and wants to PM with with email address, I will send them!

Brian.
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Old 05-24-2015, 01:05 PM   #24
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I will attempt to post a few pictures of the valve for all to view. Excuse the dirt spots etc. Must do some cleaning.

You will note that I have aluminum taped the valve where it attaches to the original main discharge. The reason for this is that there is a slight movement there when connecting and disconnecting the drain hose etc..
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Old 05-30-2015, 06:17 PM   #25
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I would like to know what the additional length will be if I add the Thetford to Valterra adaptor plus the Valterra twist on valve. Could you give it a quick measure please? Looking at your pics, I was surprised that the valve doesn't sit in the horizontal position considering the Thetford pins and Valterra pins are that orientation? Is something else rotated that I can't see?

Oh well, I'm interested in the extra length measurement.
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