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Old 03-12-2018, 11:08 AM   #1
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Divert Fresh Water Drain

I have a 2018 Forest River Sandstorm 5th Wheel Toy Hauler. There is a very nice valve/outlet (similar to the gray/black water drain valve) on the bottom to pull for draining the fresh water tanks. However, I don't have a way to divert the water anywhere other than straight down under the middle of the RV. I would like to divert the water somewhere else (e.g. other than just the street when at home, other than create a mud puddle when dry camping, etc.). The drain outlet looks to be standard, but I have not been able to find anything that I can connect to it (the dealer has no idea). The OD is 1.75" and the ID is 1.5". There are 4 posts on the outside, similar to the posts on the end of the gray/black drain, but this is a much smaller size. If I could even find a cap, I could drill and attach a garden hose bib, but I can't even find a cap.

I went to Home Depot, and none of the PVC fittings have an ID of 1.75 so I could slide it over the outlet, or an OD of 1.5 so I could insert it into the outlet. I did find a piece of 1-1/4" flexible tubing that could fit tight inside the outlet (> $6 per foot), but before I went that route I thought I would ask this group if someone had a better idea. Is there a standard cap/fitting I should be able to find, or do I need to make something myself? I have included a photo so this makes more sense.

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Thanks
Jack
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Old 03-12-2018, 01:25 PM   #2
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Replace that flange/connection with this.....
https://www.etrailer.com/RV-Sewer/Valterra/T1008-1.html

Then add this connection so you can use a garden hose to drain
https://www.etrailer.com/dept-pg-RV_...Connector.aspx

Tank will not drain as fast but you can control where the water drains to
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Old 03-12-2018, 01:44 PM   #3
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I never drain the tank anyplace but the street in front of my house. Always want as much fresh water with me as I can get.
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Old 03-13-2018, 11:23 AM   #4
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Hi Jack! Welcome to IRV2! We're sure glad you joined the gang!

Looks like Old-Biscuit may have solved your problem! Keep her between the ditches!

Good luck, happy trails, and God bless!
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Old 03-14-2018, 09:09 AM   #5
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Have you tried a pice of 1.1/2” PVC pipe? It might be an 1 1/2” female fitting and you can reduce from there.
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Old 03-14-2018, 09:53 AM   #6
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Yuo, "Old-Biscuit" has you covered.

It looks as if your coach's drain valve matches ones that Valterra sells directly to manufacturers ("OEM") (links here and here). They even sell one with a flange-with-cap (as "Old-Biscuit" suggests) (link to Valterra's page here). Valterra doesn't seem to sell the flange-with-cap in white plastic separately.

The Valterra part, T1008-1, appears different in Valterra's page vs. etrailer's page. If I had to guess, the image on etrailer's page is up-to-date, and the one on Valterra's page is out-of-date.

My coach's drain pipe does not have a gate valve that is so easily modified. To drain the tank, I've put a bucket with a garden hose outlet on the ground underneath, attached a garden hose, and let 'er rip.
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Old 03-15-2018, 11:39 PM   #7
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Slip a "Water Thief" on the drain line and then connect a garden hose. All the best.

https://www.amazon.com/Camco-Connect.../dp/B000EDOSKG
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Old 03-16-2018, 05:32 AM   #8
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Quote:
Originally Posted by keymastr View Post
I never drain the tank anyplace but the street in front of my house. Always want as much fresh water with me as I can get.
X2, or sometimes if I know I'm not going to use anymore water, I'll open it on the way home and let it drain while driving.
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Old 03-16-2018, 05:58 AM   #9
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Will a new tube fit inside ??

Whatever you do, consider a couple issues.

1) Can water accumulate inside and freeze..

2) Can bugs set up housekeeping
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Old 03-16-2018, 06:48 AM   #10
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Originally Posted by weredoingit View Post
X2, or sometimes if I know I'm not going to use anymore water, I'll open it on the way home and let it drain while driving.

As a motorcyclist, I sure hope you get a fine for that.
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Old 03-16-2018, 06:59 AM   #11
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X2, or sometimes if I know I'm not going to use anymore water, I'll open it on the way home and let it drain while driving.
Me too. Any small pools of water in the tank and plumbing slosh around and get drained out.. I then dump 1/4 gallon of antifreeze in the fresh tank, then close the drain valve.
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Old 03-16-2018, 08:47 AM   #12
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As a motorcyclist, I sure hope you get a fine for that.
For draining fresh water on the road? Don’t ever ride in Oregon, there is water on our roads all the time.
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Old 03-16-2018, 10:52 AM   #13
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Me too-
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Old 03-16-2018, 07:59 PM   #14
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Originally Posted by lynnmor View Post
As a motorcyclist, I sure hope you get a fine for that.
...

For what, water on the road?? I ride my bike in the rain all the time, it's no big deal, any good rider should know how to handle a wet road. I always drain my FW fresh water tank driving down the road.
I couldn't imagine standing in court pleading guilty to pouring water on the road!
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