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Old 05-04-2021, 12:11 PM   #1
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Plastic or nylon

Plugs for Atwood water heaters are supposed to be Nylon. But when searching to buy on Amazon there are a wide variety of choices and prices. Most call them plastic, even those listed with Atwood part numbers. Anywhere from 2 for $6.00 to a dozen for $10.00. They all look the same - are they?
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Old 05-04-2021, 12:28 PM   #2
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No idea if they're all the same, but Nylon is a type of plastic, so referring to a Nylon part as "plastic" is correct.
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Old 05-04-2021, 01:15 PM   #3
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Plastic is a very generic term, referring to any of a wide variety of synthetic materials. As atreis says, nylon fits under the label of "plastic".


You can buy the official Atwood brand part for roughly $11 for a two pack, or the Camco 2-pack for half the price. The Camco brand plugs work fine for me.


https://www.amazon.com/Atwood-91857-.../dp/B0007XVWW0
ttps://www.amazon.com/Camco-Water-Heater-Drain-Wrench/dp/B00C5T7PSO?th=1
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Old 05-04-2021, 01:26 PM   #4
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Terry-

As much trouble as they can be, I'd be inclined to order the "offical" product, Atwood/Dometic part number 91857, pack of two.

It looks as if that part number is in the same limbo as many others that have to sail across the ocean to the United States; that is, "unavailable" or "backordered" from many suppliers. What that does is make counterfeits more likely, and prices higher. The usual outlets, who I expect to sell legitimate products:

RVUpgradeStore (in stock but no picture that shows the two plugs on an Atwood card)
Camping World (backordered)
PPL (in stock but no picture that shows the plugs on an Atwood card)
NW RV Supply (does not say out of stock, but could be)
PDXRVWholesale (in stock but no picture that shows the plugs on an Atwood card)

Card looks like this. Packaging can be counterfeited, too.

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Old 05-04-2021, 01:41 PM   #5
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As others have said, nylon is a thermoplastic. That being said, if you take care one plug should last you ten years or more. Since the early 80s I have had to replace just one plug because it broke when being removed. So a two pack gives one for the tank, a spare and many years of happy camping. Worrying about the price of such a low cost item is not worth the effort. You can have a Camco two pack delivered tomorrow from Amazon for 6 bucks. I think a lot of us over think things when it comes to our RVs, it's not rocket science, it's camping.
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Old 05-04-2021, 02:28 PM   #6
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Quote:
Originally Posted by l1v3fr33ord1 View Post
Terry-

As much trouble as they can be, I'd be inclined to order the "official" product, Atwood/Dometic part number 91857, pack of two.

YES, the easy, correct answer. No advanced chemical engineering degree required.
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Old 05-04-2021, 07:29 PM   #7
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Purchased a brass 1/2 inch npt plug from Home Depot first time I winterized our coach in 2003. Still working just fine. Less than 5 bucks back then.
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Old 05-05-2021, 10:18 AM   #8
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Brass or nylon are available at many hardware stores. It is a standard plumbing plug.
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Old 05-05-2021, 01:44 PM   #9
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I would stay with the plastic. Not sure about brass and aluminum.

But a carry a spare plastic plug. Always ready to drain th eff water heater in the cold weather and last thing I need is to break it and not have a replacment.
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Old 05-05-2021, 05:02 PM   #10
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Brass & Alum NOT RECOMMENDED
https://www.langleyalloys.com/us/kno...ium-and-brass/
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