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Post Info TOPIC: Adapting waste water outlet
zed


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Adapting waste water outlet


Hi, I've got a new Starcraft and it comes with two waste water outlets for the 2 sinks, plus a waste water outlet for the washing machine. At the moment I have the waste water pipe attached so the two sinks flow into that, but the washing machine just drains onto the floor. I want to combine them. The Jayco guys gave me an adapter, but obviously I need additional piping because of the difference in diameter. And I'm guessing hose clip bolts to tighten them? I'll post up some photos shortly, just trying to figure out to do it! Photobucket isn't working.

 

So if you look at the first photo, basically I want these three outlets feeding into one waste water hose, outlests are the two white ones in the foreground and the larger diameter one (washing machine) in the background.

 

W9R1YaZ.jpg

 

 qtCsuL9

 

qtCsuL9.jpg

 

 


-- Edited by zed on Tuesday 13th of February 2018 11:30:38 AM



-- Edited by zed on Tuesday 13th of February 2018 11:33:35 AM



-- Edited by zed on Tuesday 13th of February 2018 11:34:51 AM



-- Edited by zed on Tuesday 13th of February 2018 12:04:17 PM

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zed


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Ok done the first bit, just got to connect this to the washing machine outlet..

 

D3Yihkw.jpg



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My old Jayco has two waste water outlets.  One from the sink & the other from the ensuite (Vanity sink & Shower).

If I join them into one using an adaptor like the one that you have then on occasion there is a back up into the shower floor.  This can easily be fixed using an anti backflow device like a Hepvo valve in the vanity feed line.  I don't bother & just use two waste hoses.

On the rare occasion where my hoses are not long enough I use the 2 to 1 adaptor like yours at the end of the two hoses & use my back up 3rd hose to extend the outlets.  Any back up is accommodated in the extra length.

I do have the ability to join the two near the van, by using an adaptor like yours but with 1.5m lengths connecting to the van outlets.  I can then join my 3 pipes together.  Can't remember ever having to do so over 20 years of vanning.

As it is rarely used, I only connect up the washing machine when it is needed, using the back up third hose.  If anything is going to cause a back up it's the washer.

I never use any clamps etc on the joins.

 

In your case I would fit some sort of adaptor to make all outlets the same size.

 

The outside diameter of my outlets is 27mm (I suppose it is 30mm conduit) which is the inside diameter of my waste hoses.  So they just slide on neatly & never come off even without clamps.  Where I need to join my pipes I just use small pieces of 30mm conduit.  I carry a full length in the open van chassis.

 

If you really want to have only one waste hose then after making all outlets the same diameter, make up 3 to 1 adaptor using 3 (at least 1 meter) lengths of waste pipe that join using elbows & T pieces etc, into one outlet pipe.  I wouldn't bother.

BTW, I use smooth sided hose & not the corrugated stuff that is popular these days.  It's easier to clean.  Mine has lasted for 20 years too.

 

Sorry for the long winded reply.



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Hi zed,

Welcome to the miriad of combinations known as the Jayco water outlet. biggrin

My Siverline has a grey water tank and a washing machine and when I first got my van I just connected the hoses together and use a 30 mm black hose. (27mm ID)

This caused massive grief as the washing machine water backed up and ran put on the bathroom floor

The top loading washing machine requires a 38 mm discharge hose.

I solved the problem by linking the two outlets with fittings and then bought 38mm air seeder hose from a rural supplier and used that as the hose to the drain.

You may be able to do something similar by using the present adapter and then buying adapters to connect the washing machine drain all as one rather than use two hoses.

The air seeder hose is smooth inside which is an advantage but with the top loader machine anything smaller than 38 mm may cause a flood of sorts due to water backing up.

Air seeder hose from a rural supply shop is generally a fair bit cheaper than the hose you buy in a caravan shop.

I will try to resize a pic and upload it..

 

 









-- Edited by Dickodownunder on Tuesday 13th of February 2018 12:48:21 PM

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Here is my connection.

I save having to carry two different size hoses as Jayco dealer suggested.

 

 

image.jpeg

 



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We have a Jayco Silverline, and had the same problem. The issue is that the outlet hose from the washing machine itself, requires an open, or vented outlet in the form of a stack pipe. The purpose of this is to prevent a syphon occurring, and stop you loosing all your water from the wash machine during its cycles. The concequence of this is that the outlet hose must not have any restrictions because if there is, you will end up with a mess in the van. This explains the separate outlet, and the extra bigger diameter hose you have to carry.
I have all of my waste, including the wash machine going into the grey water tank, to avoid an overflow of the stack tube, I have made up a balance tank out of 100mm PVC pipe, capped off, and mounted under the van, the wash machine drains into this, and if there is any slowing of the flow, the water can back up into the balance tank, if this tank gets full, it is open at the top and will flow onto the ground, before it overflows inside the van. So far it works well. I can supply more info if required. If you are intending to just stay at caravan parks, and space is not an issue, purchasing the correct hose for the wash machine may be easier

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gwb


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We use a grey box purchased from the bargain shop with a threaded fitting sealed in the side as close to the bottom as possible. Our sullage pipe is then fitted to it. There can be no water coming back up as the box is only placed under the outlet pipes and not physically connected to the van. We did this on the recommendation of a Jayco salesmen. Geoff and Bev

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Hi Everyone
I have been re plumbing my waste with a marine toilet Y valve (diverter) for the Grey water tank. On reading this post I'm interested to know how and where the "overflow" occurs? I assumed the washing machine has some sort of shut off valve once say the first wash is emptied to allow say the rinse wash to fill the unit, if that is so then it doesn't seem that that would be the cause of the overflow! If the pipes backed up as the waste from the WM was slow getting away, wouldn't it mean just a longer washing cycle?
Regards
TD

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Td


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terrydel wrote:

Hi Everyone
I have been re plumbing my waste with a marine toilet Y valve (diverter) for the Grey water tank. On reading this post I'm interested to know how and where the "overflow" occurs? I assumed the washing machine has some sort of shut off valve once say the first wash is emptied to allow say the rinse wash to fill the unit, if that is so then it doesn't seem that that would be the cause of the overflow! If the pipes backed up as the waste from the WM was slow getting away, wouldn't it mean just a longer washing cycle?
Regards
TD


 Hi TD,

I found that the smaller and shorter washing cycle discharged te water easily with the smaller outlet pipe but if you require to use all the cycles on your top loader then with the Jayco set up you will need a larger (38mm)

It is the size of the discharge pipe rather than the design.

Jayco insist that with my configuration with the washing machine I should be using two discharge hoses...one for the waste water and a separate larger pipe for the washing machine. So as per their suggestion I need to carry two discharge pipes of two different dimensions.

Thats great but what engineer (or salesman) decided that when you are washing up or having a shower the discharge pipe of 38 mm wont cope with the flow but a 27 mm discharge will. Hence my decision to run all the discharge via a splitter into one discharge of 38mm size.



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Hi Geoff
Thanks for the response, I understand the problem in getting the water away during the cycle (the Jayco 32mm pipe etc), but it's the comment on it "backing up and overflowing in the van" that concerns me. Is it because there is no sensor to shut off the cycle until all the water has drained ie it doesn't drain quick enough before the next cycle starts (eg rinse cycle etc) and therefor overflows out of the washing machine, or does it back up and out another drain area eg shower, wash basin etc?
Regards
Terry

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Td


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I wonder what part of my post people didn't understand?

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Ian
If you are referring to my post, it asks a question that has not yet been answered. Read it again

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Td


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OK, the washing machines I have worked on, top loaders, do not have any valve stopping the flow out of the machine. The used water is pumped out via a centrifugal pump, and continues to run until and after the machine is empty, ready for the next cycle. If the outlet of the pump goes straight out to waste, being a centrifugal pump, the next lot of water will just flow out. To stop this happening, the outlet hose is routed up to a height which is greater than the maximum level that liquid in the bowl will reach.
This means that the pump will pump the bowl clear (and over run as required), and the pump will stop, and the next lot of water will fill the bowl, because the outlet via a loop in the hose, is higher than the water level in the bowl, it won't drain. --- OK so far?
If you or anyone else connects a sealed hose to this outlet hose, then a syphon will start, and the contents of the bowl will be syphoned out during the next cycle, no pump nessesary. To stop this from happening, a syphon breaker needs to be installed at the top of the loop of the outlet hose, the easiest way to do this is just putting the outlet hose into an open outlet in a wash trough, or in Jayco's way, a length of PVC pipe standing vertically near the machine, which I called a stack pipe.
The hose they advise to use is the same or near as dia of this pipe, this would be o prevent any chance of any resistance to the flow of water in this hose, like a severe kink, because if that happens then the wash water will back up and flow out the top of the tube and into the van (the tube being open inside the van.
Now it maybe that other wash machines use a different system, but our domestic and our machine in the van follow this method.

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My van has a stack pipe exactly the same as the one in your laundry at home.
The discharge for the washing machine is 38 mm ID and that is sufficient to allow the water to get away.It literally pours out the outlet pipe while washing.
What was happening with the smaller discharge pipe was that the volume of waste water was a greater number of litres than the small pipe could cope with and the water would build up in the stack pipe and some would come over the top of it.
As with home washing machines the height and depth of insertion of the WM discharge hose is critical but that detail is in your WM manual.
In my pic above the outlet for the WM is on the left and is 38 mm and the outlet for he rest of the van is on the right.
The WM discharges directly from the van via a dedicated pipe and the rest of the water from the van ie; shower, and two sinks discharge into a grey tank and then if the valve is open it runs out into a drain in the Park or onto the ground.
In simple terms, provided the dimensions of the fitting of the discharge tube and stack pipe are correct as per factory recommendations then the WM will not discharge water inside the van.
The appropriate switches and solenoids are built into the machine and at least in my case, all operate OK.

I hope this helps..

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Zed
You will have to use a 38mm ID discharge hose to the drain etc and you will have to go to a hardware or plumbing shop to join what you have already to the washing machine outlet and the large discharge hose.
I got all my fittings and clear hose from a hardware store as they are common fittings and the discharge hose from a rural supply outlet.
As I said it is air seeder hose and it is generally cheaper than buying the hose from a Caravan shop.
Take all your parts into the shop and go from there.
I was using clamps but the plastic hose pushes on and seals without a problem.
As per the pics I riveted the plastic pipe and fittings after I pushed then together with a bit if silicon sealant on the joints.
Good luck with it all..

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I will post a pic of the manifold off the van so you get a bit more detail but I cant do it I till tomorrow.

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iana wrote:

OK, the washing machines I have worked on, top loaders, do not have any valve stopping the flow out of the machine. The used water is pumped out via a centrifugal pump, and continues to run until and after the machine is empty, ready for the next cycle. If the outlet of the pump goes straight out to waste, being a centrifugal pump, the next lot of water will just flow out. To stop this happening, the outlet hose is routed up to a height which is greater than the maximum level that liquid in the bowl will reach.
This means that the pump will pump the bowl clear (and over run as required), and the pump will stop, and the next lot of water will fill the bowl, because the outlet via a loop in the hose, is higher than the water level in the bowl, it won't drain. --- OK so far?
If you or anyone else connects a sealed hose to this outlet hose, then a syphon will start, and the contents of the bowl will be syphoned out during the next cycle, no pump nessesary. To stop this from happening, a syphon breaker needs to be installed at the top of the loop of the outlet hose, the easiest way to do this is just putting the outlet hose into an open outlet in a wash trough, or in Jayco's way, a length of PVC pipe standing vertically near the machine, which I called a stack pipe.
The hose they advise to use is the same or near as dia of this pipe, this would be o prevent any chance of any resistance to the flow of water in this hose, like a severe kink, because if that happens then the wash water will back up and flow out the top of the tube and into the van (the tube being open inside the van.
Now it maybe that other wash machines use a different system, but our domestic and our machine in the van follow this method.


 Hi Iana.

Thank you for explaining all that, I was having a bit of trouble (not the sharpest knife in the draw) understanding the whys fores of it all, even my plumbing mate looked at me.

I am pretty happy with the way ours is working and set up. Once again, thank you.



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GWB and myself use the same system, whereas his is a container that sits on the ground, I have built mine into the van, which flows into the grey water tank. I have used a one way venting valve to prevent smells from coming into the van, and a small tank which the 38mm PVC pipe goes into, as a, what I call a balance tank, to take up any back up of the water when the flow through the valve can't be met. This tank is open at the top so if it gets full it can over flow onto the ground (hasn't yet). I carry and connect up one only 1" standard waste hose, we can if required do one wash into the grey water tank, no outlet connected. It works!

However as I said in my first post, and as others have said, at the end of the day, and if you have the room to carry, it is easier, and will cost less to just go and buy the second roll of correct waste hose.

I can if interested take and post pictures if interested.

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4EEF06BB-F0A0-4284-A5C1-9D7EC92F6706.jpeg

 

Zed

This is the detail of the push on fitting for the washing machine outlet.

You will have to source the bits you need to connect yours from a plumbing or hardware store.

Jaycos have many different outlets, I have a mate with a SL but his outlets are different because he does not have a grey water tank and by what others are saying in this thread their units may be different as well.

 



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Hi Ian
I appreciate your detailed description of the process. It now makes sense to me. I didn't realise there is a open ended stack in the newer Jayco's.

I had a Heritage some years ago, and following the problem of siphoning, a Jayco dealer advised I could consider installing a marine toilet breather line at the top of the "loop" in the WM drainage hose. The valve at the top was a one way breather valve which certainly stopped the siphoning of subsequent wash/rinse cycles. I never had an overflow problem, but that I guess could have been either the outlet size and/or the the one way valve.  If you search Ebay under "Marine vented loop" you'll catch a few in NZ and USA, but I know you can buy them from Chandler shops. I bought mine from either Muirs Marine Chandlers at Manly Brisbane or Whitworths. 

I don't know why but subsequent vans, Retreat and Crusader, haven't had the siphoning issues and neither had a breather as discussed above.   I was concerned that the WMs may have been overflowing in the circumstances outlined in the earlier posts.   But thanks to your outline I know that not the case.  


Regards

Terry   smile



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Td


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I learnt the hard way, at our house in SA, I re-plumbed the laundry and hard plumbed the washing machine into the drain. We couldn't figure where the water was going, a few beers later and I twigged. Installed a fitting at the top as is the case in your picture, it only needed a small hose and down into the trough drain and problem solved.

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