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Old 05-30-2015, 08:33 PM   #1
grozier
 
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Default Replacing the drains - calling all plumbers - GRAPHIC PHOTOS

As a sign of either how much we use the Westy or how poorly we maintain it, have a look at the three drains I've just removed and the nastiness formerly stuck in the P-traps below.

Removal was pretty simple once I had some excellent pliers in hand:

I was not able to remove the shower drain screen -- as the manual suggests -- without destroying it, but doing so is not strictly necessary, as I found I could remove the ABS piping by simply tightening the drain further while simultaneously undoing the plastic connectors.

Finding replacements for the two sinks was easy, but the shower has me stumped. Any ideas?

Also, I plan on changing the gaskets at the ABS pipes. I was surprised to find a lot of plumbers putty in those connections...is replacing that stuff necessary in those connections?
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Old 05-30-2015, 08:34 PM   #2
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Default Re: Replacing the drains - calling all plumbers - GRAPHIC PHOTOS

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Old 05-31-2015, 12:43 AM   #3
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The drains are weird. 4" on top like a regular shower drain but 1.5" below like a kitchen sink drain. I got a 4" stainless steel one from home depot with a PVC body.




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Old 05-31-2015, 12:48 AM   #4
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Grozier. I will upload the rest of my pictures in my Westy thread.


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Old 05-31-2015, 01:12 AM   #5
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The westy floor drain is available online from european suppliers.


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Old 05-31-2015, 03:33 AM   #6
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Default Re: Replacing the drains - calling all plumbers - GRAPHIC PHOTOS

What did you pour down those drains? Concrete?
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Old 05-31-2015, 09:28 AM   #7
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Default Re: Replacing the drains - calling all plumbers - GRAPHIC PHOTOS

No concrete, I promise! Just a combination of toothpaste and very hard Berlin water, plus sand tracked in from the beach, I think.

The corrosion on the chrome plating came from a European RV antifreeze ... about 5X the price of the stuff available at Walmart and somehow corrosive.

Ted
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Old 05-31-2015, 02:22 PM   #8
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Default Re: Replacing the drains - calling all plumbers - GRAPHIC PHOTOS

Ted, I removed the plumbers putty and paper washer then installed these at all the p-traps in my Westy.
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Old 06-14-2015, 06:14 PM   #9
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Default Re: Replacing the drains - calling all plumbers - GRAPHIC PHOTOS

All back together today. A few notes:

- For the sinks, standard European drains work perfectly. In the U.S., apparently "bar sink" is the term. Aside from the 1 1/2 threaded connection, the flange diameter (roughly 70mm) is important. At the kitchen sink, the height of the fixture is also key, because there is very little compliance in the z-axis due to the configuration of the plumbing. I had to remove about 1/4" of height and arrange a fix with Euro pipes, as ABS is not readily available here. Had I known how much of an issue this would have been in advance, I certainly would have gone the route discus chose with the HepvO waterless "trap." There is enough compliance in the bathroom sink plumbing to accommodate a slight variance in drain height.

- It's nice to have stainless drains in the sinks and stoppers that work well.

- Per the recommendations above I replaced the sloppy putty and cardboard seals with compliant synthetic washers.

- I had never used plumber's putty before, and show in the photos below a few steps in its application, including the application of two "snakes" of material, and how the stuff oozes out as the fixture is tightened. You then scrape the excess away. Googling "replace a sink drain" brings many useful videos. The original shower drain had very little putty underneath; the inevitable leaks caused a great deal of rust on the underside of the fixture.

- The shower drain is an unusual design, and difficult to find. The flange is 4.25" -- despite being called a 4 1/2" drain in the parts book -- and it necks down to a 1 1/2" drain, whereas most showers are 2". The opening in the shower pan is only 72mm, and a 4 1/2" flange would not fit. I bought this one, which turned out to be an exact replacement. It is made (in China) by B&K. Apparently mobile homes also use this type of drain.

- I did not need a helper for either removal or installation, contrary to the Airstream repair manual procedures. I attribute this partly to the use of very high quality pliers, as noted in the original post.

- Not shown here is the strainer as with the original drain. I installed it gently with a bead of grease in the hopes that I will be able to remove it in the future without damaging it.

Ted
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File Type: jpg 2015-06-14 15.51.30.jpg (112.4 KB, 111 views)
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Old 06-14-2015, 06:18 PM   #10
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Default Re: Replacing the drains - calling all plumbers - GRAPHIC PHOTOS

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