Silver Streak waste valve repair

[mrcjdunne]

Hi,

I had to replace the Thetford Blade Valve on my 1969 Silver Stream Rocket Deluxe waste tank. The Thetford valve had been glued in to the ABS waste sanitary Y so I had to cut that out and need to replace the entire ABS fitting as well as the blade valve. Trouble is, I can't find the same style anywhere (picture attached). It's a 3"x3"x2" double sanitary "T" fitting. Does anyone have advice where I can find this? Or have you done the same kind of repair and have another solution?

Thank you,

Chris Dunne

[VeggieBullet]

Hi Chris.
I saw them in a local mobile home parts store in our area, I'm pretty sure that if can't find them online we can get you one.
Keep us posted.

[VeggieBullet]

ABS Pipe Fittings - Fittings - Grainger Industrial Supply

[newsgauger]

Hi Chris,

Wow, that connector is something strange. You should see if you can save it.

The closest thing that I can see you getting would be a 3x3x1-1/2 elbow under Grainger's Part Number 3GUP4. However, it looks like you will need to adapt another 90 degree 1-1/2 fitting to match.

The 3GUP1 looks like a 3x3x3 (female x male x male).

Good Luck!
Chris

[mrcjdunne]

Thanks. It is an odd fitting. I think I'll probably need to get the 3x3x3 Grainger 3GUP1 and a 3" to 2" reducing coupler. Unless somewhere out there is a 3x3x2. I will call Fergusons tomorrow. I couldn't see their online catalog because I'm don't have an account with them.

Chris

[VeggieBullet]

chris this seems like it should work
GRAINGER APPROVED VENDOR Tee Wye, 3 x 3 x 2 In, ABS, Hub Connection - ABS Pipe Fittings - 1WHW8|1WHW8 - Grainger Industrial Supply
and this can be used with a coupler.
GRAINGER APPROVED VENDOR Reducing Sanitary Tee, 3 x 3 x 2 In - ABS Pipe Fittings - 1WHU4|1WHU4 - Grainger Industrial Supply
hope it helps

[M2HB]

I had an odd fitting that I needed for my 1969 Avion C-11. We ended up making it. Ticki2 found a place that had odd fittings. I'll see if I can find it.

[M2HB]

Here is a link to ticki2's info on an odd fitting from Genova pipe.



http://www.airforums.com/forums/f417...1-90779-4.html

Genova may have what you are looking for. Good luck.

[newsgauger]

Good Morning Chris,

Grainger also carry the Elbow 90 Deg 3x3x2, PN 3GUR3. This is similar to the one I posted earlier. But, still will need another fitting to make that 90 degree 2" bend.

Good Luck!
Chris

[mrcjdunne]

Originally Posted by newsgauger

Good Morning Chris,

Grainger also carry the Elbow 90 Deg 3x3x2, PN 3GUR3. This is similar to the one I posted earlier. But, still will need another fitting to make that 90 degree 2" bend.

Good Luck!
Chris

That one is very close. But it's not sanitary. When black waste comes out of the 3" side it can flow into the 2" gray lines. If I were to flip this one 90 degrees CW so the black waste came down the bend, the 2" waste line would be vertical rather than in a horizontal orientation that I need.

I'm beginning to think this piece was either custom cast for SS or is just not made anymore.

Chris

[SSSabre]

We had the same "Y" or "T" in our unit. A previous owner cut off the 1.5" portion and sealed with a flat piece of PDC. The gray drain was then diverted down, no longer sharing the outlet with the black tank. A link to our as-delivered installation is below.

Old installation

It might be easier to MacGyver a new drain than try to find and equivalent "T".

[nmbosa]

Originally Posted by mrcjdunne

That one is very close. But it's not sanitary. When black waste comes out of the 3" side it can flow into the 2" gray lines. If I were to flip this one 90 degrees CW so the black waste came down the bend, the 2" waste line would be vertical rather than in a horizontal orientation that I need.

I'm beginning to think this piece was either custom cast for SS or is just not made anymore.

Chris

Chris, I think that 3x3x3 double sanitary tee from Grainger with a 2" reducer on the gray water side should work fine. That will be very close to original and allow you to fit everything in the same place. Making the pipe bigger on the downstream side is not going to cause any flow restrictions for the gray water. It would only be a problem if you were going from the 2" gray line to a smaller tee fitting.

Norm

[mrcjdunne]

Originally Posted by SSSabre

We had the same "Y" or "T" in our unit. A previous owner cut off the 1.5" portion and sealed with a flat piece of PDC. The gray drain was then diverted down, no longer sharing the outlet with the black tank. A link to our as-delivered installation is below.

Old installation

It might be easier to MacGyver a new drain than try to find and equivalent "T".

Paul,

I was going to go through your blog today actually. I knew you would have a similar setup. Turns out you have a Frankenstein fitting! I am going to MacGyver it in. Already spent to much fruitless effort trying to match it.

Chris

[mrcjdunne]

Originally Posted by nmbosa

Chris, I think that 3x3x3 double sanitary tee from Grainger with a 2" reducer on the gray water side should work fine. That will be very close to original and allow you to fit everything in the same place. Making the pipe bigger on the downstream side is not going to cause any flow restrictions for the gray water. It would only be a problem if you were going from the 2" gray line to a smaller tee fitting.

Norm

Norm,

I am going to go with the 3x3x3 with a reducer. It is by far the easiest solution.

Chris

[nmbosa]

Originally Posted by mrcjdunne

Norm,

I am going to go with the 3x3x3 with a reducer. It is by far the easiest solution.

Chris

The only guy that would ever notice the difference is Tom Patterson.

[TinCanCookie]

If I ever see him trying to crawl under our trailer, I'll shoo him out of there.

[mrcjdunne]

Ended up sawing and chiseling out the old glued in piece. Saved the original piece and about $75 in new fittings cost.

[mrcjdunne]

well, got the valve in. Now it appears the tank is leaking somewhere as water is dripping out from behind the valve mounting flange.

Time to start a new thread on repair / replace black tank!