Convert Gray Water Pipe from 1 1/2" to 3" - Fiberglass RV


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Old 08-11-2011, 11:53 AM   #1
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Convert Gray Water Pipe from 1 1/2" to 3"

Hello,
Our 13' Boler's gray water drain is a 1 1/2" PVC pipe. Right now we use a bucket to collect the water and dump it in the sewer when full, but I would prefer to have a more standard system, and it looks like all standard sewer hoses are 3" wide or larger. Any simple plumbing attachments out there to convert a 1 1/2" pipe (with threads on the inside) to a 3" pipe? Or any 1 1/2" sewer hoses available anywhere? Many thanks!
Chantal
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Old 08-11-2011, 01:44 PM   #2
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there are several types of adapters, you can go from 1-1/2 to 3/4 inch garden hose, or from 1-1/2 to 3 inch, then add a gate valve.

google: rv waste valves, and abs adapters.

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Old 08-11-2011, 02:54 PM   #3
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a brand called "ferco" makessome nice MJ bands...easy one step change from 1.5 to 3 inch.
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Old 08-11-2011, 05:58 PM   #4
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Originally Posted by Joe MacDonald View Post
there are several types of adapters, you can go from 1-1/2 to 3/4 inch garden hose, or from 1-1/2 to 3 inch, then add a gate valve.

google: rv waste valves, and abs adapters.

Joe
Thanks a lot Joe. Will investigate the options. I never thought of going from a 1-1/2" to a 3/4" garden hose. That is probably the route I will take.
Chantal
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Old 08-11-2011, 05:59 PM   #5
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Originally Posted by KevinWA View Post
a brand called "ferco" makessome nice MJ bands...easy one step change from 1.5 to 3 inch.
Thank you very much. Will look at that option as well.
Chantal
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Old 08-11-2011, 06:01 PM   #6
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Quote:
Originally Posted by Chantal L. View Post
I would prefer to have a more standard system, and it looks like all standard sewer hoses are 3" wide or larger.
The only reason for 3" is to dump Black water, not Gray... There is an adapter to connect smaller hoses for gray water to an RV campground sewer fitting.
Amazon.com: Camco 39111 RV Easy Slip Grey Water Drain Adapter: Automotive

Then get an adapter for the outlet on the trailer to connect to a garden hose.
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Old 08-11-2011, 06:22 PM   #7
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Originally Posted by Frederick L. Simson View Post
The only reason for 3" is to dump Black water, not Gray... There is an adapter to connect smaller hoses for gray water to an RV campground sewer fitting.
Amazon.com: Camco 39111 RV Easy Slip Grey Water Drain Adapter: Automotive

Then get an adapter for the outlet on the trailer to connect to a garden hose.
The things you learn!... Thank you very much Frederick!
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