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dumb question, but i need help

A place to ask general spud cannon related questions.
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Unread postAuthor: Victortheman123 » Sat Oct 06, 2007 7:08 pm

alrighty, thanks :D
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Unread postAuthor: HaiThar » Sat Oct 06, 2007 7:09 pm

They have em at HD, you just need to get the threaded reducing bushings. I.E., you need a coupler, reducing bushing and then a threaded to your pipe size adaptor... It costs a bit more now, but when you're not paying for hospital fees, it helps. Also, afaik, there are no pressure rated screw in caps @ HD, so you will have to do with the DWV as your vent port...(an idea though, would to be to use a ball valve as your vent port instead of the cap)
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Unread postAuthor: sandman » Sat Oct 06, 2007 7:09 pm

i ordered all my fittings form an online store called mcmasters, and got odds and ends at lowes
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Unread postAuthor: DYI » Sat Oct 06, 2007 7:13 pm

There is no such thing as a "screw in cap", period. By definition, a cap goes over a piece of pipe, so there is nothing to screw into. There is, however, a such thing as a pressure rated screw in plug, but they don't look anything like the cleanout cap that you have on it.
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Unread postAuthor: sandman » Sat Oct 06, 2007 7:16 pm

the only difference is they dont have the square on top
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Unread postAuthor: DYI » Sat Oct 06, 2007 7:17 pm

The pressure rated ones are hex head, the DWV ones have a small square head in the middle.
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Unread postAuthor: sandman » Sat Oct 06, 2007 7:19 pm

correct, so they are not completely different , they are similar, just different heads
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Unread postAuthor: Modderxtrordanare » Sat Oct 06, 2007 8:31 pm

A lot more threads too. :wink:
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Unread postAuthor: noname » Sun Oct 07, 2007 12:14 am

A lot of you newer guys seem to just accept that DWV fittings aren't safe, and I'm not completely sure if you know why. It may just be me, but most of you just say they're unsafe with no explanation.
Yes, the fittings are used for non-pressure systems, but they are the same pipe, and the same thickness (provided they're Sch 40). The main danger is that they are more prone to blowing off, because the socket depth is extremely short. A 2" NSF-pw (Sch 40) has a socket depth of 2-2 1/2." A 2" Sch 40 NSF-dwv coupler has a socket dpth of about 3/4" or less.
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Unread postAuthor: jimmy101 » Sun Oct 07, 2007 10:51 am

potatoflinger wrote:If they say nsf-dwv on them, they aren't pressure rated.

This is not true. Many pipes and fitting will say both NSF-DWV (drain waste vent) and NSF-PW (pressurized water). So, the presence of NSF-DWV has no real meaning. The only thing that matters is that the pipe or fitting says NSF-PW or that it has a suitable pressure rating limit printed or embossed on it.
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Unread postAuthor: clide » Sun Oct 07, 2007 1:39 pm

jimmy101 wrote:
potatoflinger wrote:If they say nsf-dwv on them, they aren't pressure rated.

This is not true. Many pipes and fitting will say both NSF-DWV (drain waste vent) and NSF-PW (pressurized water). So, the presence of NSF-DWV has no real meaning. The only thing that matters is that the pipe or fitting says NSF-PW or that it has a suitable pressure rating limit printed or embossed on it.


While it is true that the could have both, I've never seen a fitting with both or met anyone who could provide me with a picture of a fitting with both. Pipe usually does have both though. Also PW stands for potable water.
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Unread postAuthor: meatballs » Sun Oct 07, 2007 1:39 pm

thats right jimmy. by default, any pressure rated fitting will be able to stand up to the pressure of a drain pipe.
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