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 > Fresh water dump inside help

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boatmanea

New Braunfels, TX

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Posted: 04/29/22 11:03am Link  |  Quote  |  Print  |  Notify Moderator

We store our Grand Design ST3740BH-R in a barn on our property with a 50A hookup over the winter. In preparation for our RV season, sanitizing and flushing of the water system is a must. The issue I'm having is that when I do this, I need to have it outdoors because I am filling and dumping 80 gallons of water with each step. I have no means to redirect the water out of the barn, which means having to hook up to the truck and drag the RV outside, away from 50A power, for a day or two. This is also the time we're packing and loading up and in Texas, that can mean HOT! It would be nice to have 50A hookups so we can run more than just the fridge for those 2 days. And, the closest level surface to park and do this is about 500 feet from my barn, so a long 50A extension cable is just not an option for me.

So, what I am looking for is a solution to be able to fill and drain the RV while it is still in the barn. Has anyone done this? I can easily route the gray water dump outside, but the fresh water dump gate and overflow tube are my main obstacles. Also, it is really not a realistic option to "bucket collect" 80 gallons of fresh water and move it by hand. Has anyone found a a connector that fits that dump gate and one that fits the overflow tubing so this can be done indoors?

Dump gate outer diameter is approximately 2-3/8"
Overflow tubing outer diameter is approximately 7/8"
(Yes, I know I have measurements and can probably order a bunch of stuff and "trial and error" until I find the perfect fit, but I am trying to eliminate some steps.)

agesilaus

North Florida

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Posted: 04/29/22 04:51pm Link  |  Quote  |  Print  |  Notify Moderator

I don't know where you would find 2 3/8 flex hose or fittings. Maybe vacuum cleaner hose?
2 1/2 hose

The smaller hose should be no problem get some double barbed fittings to fit, and add vinyl tubing


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nickthehunter

Southgate, MI

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Posted: 04/29/22 04:54pm Link  |  Quote  |  Print  |  Notify Moderator

Hook it up and pull out. Done. I have to drive 5 or 6 miles to get mine, hook it up, pull it home, sanitize it, pull it back to the storage yard, back it in, unhook and drive back home. I’ve never considered that to be a big deal.

Cummins12V98

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Posted: 04/29/22 05:55pm Link  |  Quote  |  Print  |  Notify Moderator

I answered your question on another forum. 1.5" PVC pipe reduced down to a garden hose fitting. Make it a temporary setup or permanent.


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ItsyRV

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Posted: 04/29/22 06:33pm Link  |  Quote  |  Print  |  Notify Moderator

Have you considered a plain old 3" flexible flat blue pool water discharge hose and a zip tie? And I would think any diverter setup (plastic sheeting and some bricks) would handle and direct anything from the overflow outside.


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Roger10378

Goodrich, MI.

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Posted: 04/30/22 05:33am Link  |  Quote  |  Print  |  Notify Moderator

Or get some plastic gutter sections. They snap together and can be undone when you complete the job. Support it with some bricks or wood blocks so that you get some pitch.


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TenOC

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Posted: 04/30/22 08:12am Link  |  Quote  |  Print  |  Notify Moderator

Get a sewer cap with a normal water hose connection such as a Camco RV Sewer Cap 39465. Use the onboard pump to drain the fresh water to the sewer tank that is connected to a normal garden hose.


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opnspaces

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Posted: 04/30/22 08:25am Link  |  Quote  |  Print  |  Notify Moderator

Go to Home depot and at the order desk order a 50 foot roll of 2 inch pool drain hose.
Hose

Once your order is complete go into the store and buy:

A 64 qt plastic storage container. This is your funnel. Container

Some threaded ABS fittings. Link 1 and Link 2

A tube of caulking

If needed go to Harbor Freight and buy a hole saw kit. Hole Saw


Very carefully drill a 2 inch hole in the end of the container near the bottom. If you press too hard the container might crack. Use a boatload of caulking and screw the two fittings through the hole in the container. Now let the caulking dry for a couple of days while you're waiting for the drain hose to arrive.

For use: Place the storage crate under the drain on the trailer. Attach the drain hose to the fitting using the included hose clamps.

If the hose will not fit over the fitting you might have to buy a short piece or 2 inch pipe and glue it into the fitting. Then attach the Pool drain hose to the fitting. Pipe and some PVC glue PVC glue

When finished disconnect the hose and hang it from a tree or something outside to drain dry. Then roll and store the hose. Put the storage container in a corner somewhere.


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joebedford

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Posted: 04/30/22 01:59pm Link  |  Quote  |  Print  |  Notify Moderator

macerator? You can run as much 3/4" output hose as you like as long as there isn't too much grade upwards.

Goostoff

Wisconsin

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Posted: 04/30/22 09:59pm Link  |  Quote  |  Print  |  Notify Moderator

Just get a pool hose and adapter and run it out the door. Or worst case turn the pump on and run it down the sink drain and out the gray water dump.
pool vac hose

adapter of sorts


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