Caravan dust pressure systems

 
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Terryf



Joined: 11 Dec 2016
Posts: 13
Location: James Creek
State:: NSW
Current Bushtracker owner:: Yes
PostPosted: Mon Feb 08, 2021 5:16 pm    Post subject: Caravan dust pressure systems Reply with quote

Can anyone give me some feedback on their air pressure system to prevent dust entering the van
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datama



Joined: 28 Oct 2010
Posts: 176
Location: Perth North Eastern Metro
State:: WA
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PostPosted: Mon Feb 08, 2021 9:26 pm    Post subject: Reply with quote

Hi Terry,
Bit surprised, we have never had dust inside our BT, as BT’s are generally well renown for being dust free.
Just where are you getting dust in?

We place a piece of 6mm double sided aluminium insulation (which is actually a soft flexible version of corflute with aluminium foil on each face, used for between walls insulation on some types of houses) between the outside door and inside screen door, just to provide a barrier ...and we have the aluminium waterproof door closed always) but we have never had any dust inside our van, even before we even started to place it there.

https://www.bunnings.com.au/project-panel-white-corflute_p0390160

Hope that may help.
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Terryf



Joined: 11 Dec 2016
Posts: 13
Location: James Creek
State:: NSW
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PostPosted: Tue Feb 09, 2021 7:55 am    Post subject: Caravan dust Reply with quote

We also do that but if you have a tinny on top of your car you create a low pressure system behind the car which lets dust in.We have been to a lot of places over the last 8 years and still get dust in the van.I rang Bushtracker when this first happened on a trip from Mareeba through Chillagoe to the gulf and down to Karumba.They said you must have a tinny on top which I did and suggested putting a foam seal around the moon roof and 4 seasons hatch.We also get dust in the cupboard under the fridge and stove.
I have been looking at getting a pressure system to combat this and was wondering if someone else has fitted one.
Thanks
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Darjak



Joined: 27 Mar 2008
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Location: Kingsholme
State:: QUEENSLAND
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PostPosted: Tue Feb 09, 2021 9:12 pm    Post subject: Dust in van Reply with quote

Terryf
We have been full time travelling in van with tinnie on top since 2007.
It sounds like your problem might be sealant in the wheel arch on top of the subframe happen to us, do the foam in the 4 season hatch and other than that never have had a problem even in talcum powder bulldust.

Darjak
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Almeister



Joined: 25 Apr 2021
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Location: Geraldton
State:: Wa
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PostPosted: Tue May 04, 2021 1:10 am    Post subject: Re: Caravan dust Reply with quote

Terryf wrote:
Cel fi installation supply data cabling installation Western Australia sale and supply service cel fi pixelpac
We also do that but if you have a tinny on top of your car you create a low pressure system behind the car which lets dust in.We have been to a lot of places over the last 8 years and still get dust in the van.I rang Bushtracker when this first happened on a trip from Mareeba through Chillagoe to the gulf and down to Karumba.They said you must have a tinny on top which I did and suggested putting a foam seal around the moon roof and 4 seasons hatch.We also get dust in the cupboard under the fridge and stove.
I have been looking at getting a pressure system to combat this and was wondering if someone else has fitted one.
Thanks


This sort of understanding of your own product is reassuring
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LJTracker



Joined: 28 Jun 2021
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Location: Maudsland
State:: Qld
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PostPosted: Sat Aug 14, 2021 6:46 am    Post subject: Reply with quote

On a another brand of serious off road van I fitted a Carafan which totally fixed the issue. I replaced a Fantastic hatch with the Carafan easily fitted. Pumps approx 200lt/ second through a large air filter.
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Bushtracker
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Joined: 12 Jul 2007
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Location: Kunda Park
State:: Queensland
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PostPosted: Sat Aug 14, 2021 10:10 am    Post subject: Reply with quote

Copied from Myths Section.....


PostPosted: Fri Jul 27, 2007 12:27 pm Post subject: PRESSURE HATCH IN VANS FOR DUSTPROOFING???

A gimmick picked up on from the bulldust rally car mob, and while it does work for them, here is why it does not in a van....

Some things, like the pressure hatch, we can do for you but it is unnecessary. It is a Sales Gimmick invented by people that cannot build vans right in the first place and dust is a real problem as the finer than talc bulldust gets through all their construction joints...

Since our van is built properly and water tight, it is dustproof... The bull dust enters under air pressure through the construction joints in a normal van up through the floor and the wall to floor joint, and the lower part of the cladding, and where hoses and such come through the floor.... Bushtracker is built to be watertight to one metre, and does not have these problems of normal vans...

Now the Pressure Hatch is a sales gimmick to combat this problem of bull dust that is down to the size of particles of cigarette smoke, and they cannot keep it out as their vans are not water tight and dust proof... The air pressure as the normal van travels along forces the dust in through all the gaps. Now we can put one in for you, but they are just a bit of a gimmick as they actually scoop dust up as they travel along... Have you ever been on a bull dust track where the dust hangs in the air for few kilometres? Well the hatch just vacuums that up... And you aren't going to get out and close it every time a car passes you either way on a windless day when the bull dust hangs in the air... So, we can put it in, but it is not needed when our vans are built the way they are...

Further more the whole concept of the pressure hatch is a bit in error. Yes it can work in a rally car as the car body is sealed. But in a van, you have the gas hatch on the door, and the Four Seasons Hatch that is mandatorily a gas hatch with a double skin that always lets air out... So the people flogging the pressure hatch idea are wrong from the start, it cannot raise the air pressure in the van as it goes out the gas vent in the door and the Four Seasons Hatch as fast as it comes in...!!!! All it will do is vacuum up the dust hanging in the air in front of you. And NOBODY is going to pedantically get out and close it when a car passes the other way in the bulldust each time... We can do it if you insist. But this is why 99.5% do not once they read this...

This is more in the category of gimmicks pushed by people that do not build the vans right in the first place.. Yes it works in rally cars, but they do not have mandatory gas venting and hatch venting...

Regards from the Ranger, just tellin it like it is....
[/b][/i]


Jeff&Narelle@Alice

Joined: 03 Dec 2009
Posts: 62
Location: Alice Springs
State:: NT
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Hi
We have had 3 Bushtrackers (all second hand) since 2006 and traveled many 100's of km's on dirt roads and never had a problem with dust. We always close the water tight door when travelling on dirt.
Regards
Jeff & Narelle
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Loki of Condor



Joined: 03 Sep 2008
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We have done 3 laps of the country in our 2009 BT. Only negligible dust entry, and that only occurs in very unusual circumstances through the compulsory gas vents, ie, the 4 Seasons hatch and the vent on the main door.

As a matter of fact, we probably get more dust in our house, and that's bugger all.

By the way, we had a pressure vent on our previous van (a prominent Victorian brand of Off Road van starting with T***k and ending in M****r) and it only did a half arsed job. More water came in through the front boot. At least we could see where the water came from by looking at the tracks it left through the dust.
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arthur uncle



Joined: 13 Jan 2015
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Location: Kingsgrove
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PostPosted: Sun Aug 15, 2021 4:01 pm    Post subject: Reply with quote

I'm thinking someone doesn't know what a Carafan is
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Bushtracker
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Joined: 12 Jul 2007
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State:: Queensland
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PostPosted: Mon Aug 16, 2021 10:14 am    Post subject: Reply with quote

Anything with a filter like that,

Is going to pack up with dust. Another sales gimmick IMO
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LJTracker



Joined: 28 Jun 2021
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Location: Maudsland
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PostPosted: Mon Aug 16, 2021 10:27 am    Post subject: Reply with quote

Well it is like any air cleaner and need to be serviced but after 5000k of very dusty roads was still operating very well. These are used in earthmoving cabs etc so very robust and in no way a gimmick if you do have a dust problem. We are on a 16 month wait for our BT so just saying how we fixed our current issue.
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