Put 3/4 grey water line in with sewer line

336 · 05-09-2016, 06:12 PM

How can I put a 3/4 hose grey water line and pipe it in to the hookup with my sewer line. I was thinking maybe I could use one of those washer elbow fittings but they all seem to be a tight jet design to get more water pressure. Not sure this would work. Isn't there just a regular garden hose to sewer hose connection?

nellie1289 · 05-09-2016, 08:18 PM

Quote:

Originally Posted by 336

How can I put a 3/4 hose grey water line and pipe it in to the hookup with my sewer line. I was thinking maybe I could use one of those washer elbow fittings but they all seem to be a tight jet design to get more water pressure. Not sure this would work. Isn't there just a regular garden hose to sewer hose connection?

I've read your post three times and
I still don't know what you are asking or trying to do ?

336 · 05-10-2016, 12:44 AM

I put a garden hose adapter cap on the drain for there 336 outside kitchen dump, rather than having to hook up dual sewer hoses and run a Y, it always is a pain, I just want to run sewer hose from the main dumps and garden hose from the outside kitchen dump and plumb them together at the hook up. I bought I could use a flush out elbow fitting with he hose connection but they are "jetted" to increase water pressure so it really limits flow. Was just wondering if anyone had done this. I see grey water 3/4 " to drain hook up adapters but most campsites don't have 2 pipes to the sewer.

notanlines · 05-10-2016, 03:04 AM

I guess I'm with Nellie here. I don't think I've ever been this confused. What is an outside kitchen dump? And what would you do with a 3/4 inch water hose?

Bob Landry · 05-10-2016, 03:40 AM

It sounds like the sink at his outdoor kitchen did not have a drain and he is trying to plumb one into the grey water line. Just guessing. The outdoot sink is going to be fairly close to the galley. I would look for some PVC fittings and plumb that line into where ever the galley sink goes to the grey water pipe. He will have to go to Home Depot or Lowes and piece the correct size fittings together and cut into the grey water pipe at the galley.
Beyond that, I'm as confused as everyone else.

jkohler70 · 05-10-2016, 04:11 AM

I think he has two gray tanks and doesn't want to use a "Y" in his sewer hose. He wants to permanently connect the two dump lines so he only has to use a single sewer hose.

**chuckster57** · 05-10-2016, 05:03 AM

I am thinking he wants to use the fittings that hook onto the termination that have a fitting for using a garden hose to back flush. Then run the garden hose between them.

OP: I suppose it could work if you can remove the innards of each garden hose fitting for increased flow.

336 · 05-10-2016, 05:32 AM

Chuckster is closest to understanding. I'll post a pic when I'm done. I don't want to use the Y and 2 sewer lines because they Y always ends up letting stuff sit in both lines even with catipillar supports the campground end is usually too high. I'm thinking maybe I can drill out the inner "jet portion" of one of the back flush elbow fittings to accomplish my goal. I let you know how I make out. Maybe I'm onto something.

GaryWT · 05-10-2016, 05:51 AM

Do you have a second grey tank or is the outside kitchen a direct dump? I never filled the outside kitchen tank when I had one so after dumping the main tanks I would just move the sewer line over for a second rinse out so to say and all was good. If you have no tank then try removing the guts to the jet attachment to see if that works.

**hankpage** · 05-10-2016, 06:19 AM

If your gray water tank full level is higher than the sink drain, you may get a surprise at the sink when the tank fills. Sloshing on the road may send waste out of the sink also if you don't use some type of check valve or mechanical trap.

nellie1289 · 05-10-2016, 09:24 AM

His problem is the 336bhs does not have a galley tank for the outside kitchen, it just direct drains to a dump valve at the back of the unit, so he wants to connect a garden hose to his main grey/black tank dump hose to "Y" them together.

therink · 05-10-2016, 01:11 PM

Why not just put a garden hose fitting on end of sink drain outlet pipe and slip it in to CG sewer hole at donut seal. I'm sure there is a way thatcan be rigged up without a whole lot of modification to the sewer hose fittings.

malabarbob · 05-10-2016, 03:32 PM

Sounds like he has what I have on my Bullet. In the rear, I have a gray line sewer value which I assume dumps the kitchen. Mid-ship, I have both a Gray (shower and sink) and Black - separate outlets and valves. So, to dump, I have to hook up 3 separate lines. I think he wants to take the two mid-lines and Y them off to a single hose. He still will need something else to dump the rear Gray. Don't think I would recommend hose because even kitchen could have crud. Maybe he means once of those macerator hose systems.
Cant wait for my first dump. Going to be a pain as they are not easy to get to underneath. I am thinking of extended valves outboard about 12 inches flush with the edge of the trailer,

336 · 05-10-2016, 04:21 PM

Nellie has it. I have my sewer and galley on one line, the back outside sink is a separate line. No tank. Rink, your idea works but ur forgetting about the other line with the black and galley tank. Most campgrounds don't have 2 sewer laterals. The crud from he sink isn't an issue I wash out the hose and use that same hose for my black tank flushing. I have the cap on the trailer that reduces the outside sink connection to 3/4. I could put an opposite end cap on a Y and then plumb but not really a fan of the Y. A wash out elbow without the tightness for water pressure will do the trick. Honestly surprised this dosent exist. Work in progress.

**chuckster57** · 05-10-2016, 05:40 PM

Since a majority of people would just run a Y, I'm sure the engineers and such figure there isn't any thing to figure out. Sometimes we make things more difficult while trying to make it easier.

Reminds me of my previous fiver. Rear kitchen and as such a separate gray tank. Had one termination up front and another in the back under a slide. For 13 1/2 years, I dealt with moving the hose to drain. Too lazy to run a Y but didn't mind moving a hose...LOL.

canesfan · 05-11-2016, 05:48 AM

Not sure why you don't like the idea of a Y. I have two gray tanks, the rear tank is plumbed into the main discharge with a Y. All 3 tanks share one discharge. The rear tank line is higher than the main discharge and unless you open both gray valves at the same time it's highly unlikely that gray water would flow from one to the other. And since your sink is most likely higher than your gray tank there's not much chance of water flowing from your tank into the sink. That is if I'm understanding everything correctly. Later today I'll see if I can get a picture for you.

There is also this http://www.amazon.com/Camco-39812-Rh.../dp/B002OUIXU8

And this http://rvsupplies.com/valterra-wye-3...3-hub-x-2-hub/

336 · 05-11-2016, 08:18 AM

I have the Y now. My previous trailer had dual greys as well. By the time I split the difference in distance the lines are basically flat. Some CG stubs are 5" out of the ground. Even with supports and fancy hoses and every other engineering marvels in the turd department. Then the Y flip flops whichever way you dump. Then you have to coax the slop along the hose, then it goes into the other. It can be done, and I've been doing it for years. It's a pain I don't like crawling under the slide to help the waste along and messing with the lines and Y. If I hook up a short run from my black/grey line it will work nicely, garden hose my tankless kitchen sink into the top and my days of coaxing turds down the line are over. Trying to improve a situation is how the world advances

canesfan · 05-11-2016, 09:12 AM

Quote:

Originally Posted by 336

I have the Y now. My previous trailer had dual greys as well. By the time I split the difference in distance the lines are basically flat. Some CG stubs are 5" out of the ground. Even with supports and fancy hoses and every other engineering marvels in the turd department. Then the Y flip flops whichever way you dump. Then you have to coax the slop along the hose, then it goes into the other. It can be done, and I've been doing it for years. It's a pain I don't like crawling under the slide to help the waste along and messing with the lines and Y. If I hook up a short run from my black/grey line it will work nicely, garden hose my tankless kitchen sink into the top and my days of coaxing turds down the line are over. Trying to improve a situation is how the world advances

I think we misunderstood each other. I didn't mean an external Y as in my first link, I meant a Y plumbed into your current black/gray discharge line as in my second link. You can probably piece together some pieces to connect your garden hose to the Y fairly easily. Then everything will empty from one discharge. I'd think that would be the best route, at least IMO.

canesfan · 05-11-2016, 09:17 AM

Wait!!! I just thought of something. How about one of these?

https://www.rvupgradestore.com/Valte...-p/89-1002.htm

You could put it between your sewer hose and elbow that goes into the CG sewer and attach your garden hose to it, no? Would that not work?

Or if that would be too odd an angle (although you could put it on different ways, pointing up, or side to side) you could put it between your discharge and sewer hose, where it was meant to be. After you dump your black and gray tanks, close them and dump your sink. The water would run into your main discharge and then back down the sewer hose.

I have one from a previous trailer that didn't have a black tank flush, now I just use it to see when the black tank is draining clear.

336 · 05-11-2016, 09:56 AM

Lol, yes coltsfan. That would except the flush fittings are "jetted" or nozzled to increase flow. Like holding your thumb over the hose. So reducing flow/catching bits of whatever. I'm gonna get one like you linked and drill it out to open it up. That is exact ally what I envision. I thought someone would have seen one somewhere that wasn't a flush elbow with the "jetting" but just a regular thruput type. Very confusing to explain I guess.

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