Filling dual water tanks on caravan

Is there an Air Bleeder outlet on the top of the second tank? When you say "Top Tank" is one tank lower than the other?

How does the second tank fill? Is there a T piece in the filler hose, or does it fill be gravitation from the first tank.

Had the same problem.

I think the best solution is to have a bigger dia hose connecting the 2 tanks.

However, I have seem to have solved by using a larger hose connected to the the normal hose at the intake so that there is a tight fitting in the neck of the intake and also by opening the tap at the sink.

I believed what happens is that the second tank gets filled with air and restricts the flow of water through the connecting hose to the second tank.

By having the tight fit on the intake and opening the kitchen sink tap the trapped air is forced through allowing water to freely move in the connecting hose and stops the restriction.

Anyway that's my theory and it works.

A helpful fellow at Burketown saw me struggling to fill our tanks (same problem as you) and told me to turn one tank off (outlet/ isolator tap near the tank) and fill each separately. Seems to work well now.

Eddyafro we had same problem with our windsor and I connected a new filler line from front of van into the current filler line that connects the tanks together and connect the hose to this and remove orundo the lock filler which manufacturer installed and this allow water in at lowest point and due to the manufacturers filler being higher it allows the air to escape out there. The cap doesn't need to be taken off but allows air to escape faster.

I force fill my 2 tanks one at a time through the drain taps.

Gets them 100% full and flushes them at the same time.

I have isolation taps between them on both the filler hose as well as the suction hose and use the tanks one at a time.

This worked well for me on my last Birdsville trip when we lost the water on the rear tank but the front tank was still 100% full.

Regards

Derek.

I used to have problems too until I discovered what the problem was. If you put a hose into the filler, the water floods the filler neck and blocks the air coming out of the bleeder hole which is just inside the filler neck. To stop this I make sure the hose goes a small way down the pipe connected to the filler. This allows the air to exit the breather hole and you can fill at max flow of the tap. Can be a bit tricky to get the hose down the pipe (have to bend the end a bit). I have plans to build a piece of hose with a small amount of copper pipe bent to the correct angle to make this easier and have a connector on the end to fit the hose. This should make it a lot easier to get it into the pipe.

Ian

Me too at times - we have 3 tanks on the Trakmaster, with the 3 fillers at the rear - no snags at all with the two back tanks but the front one can be a $#@&^*% nuisance when wanting to save time - with the van quite level, I can fill the front tank but it has to be done at a trickle - any more than the trickle and it air locks every time. I have checked the various hoses underneath and re rigged them here and there to remove the odd kink from the factory (to no good effect of course !). Re the suggestion of back filling it from the drain - I like that one - to be investigated ! :-o)

I just started useing the drain fitting on ours one day because it seemed easier tto just hook the hose up to it and wander off. Certainly works better than using the filler, which air locks continually, I just have to make sure the filler cap is off or I can flood out the van if not careful!

Merry Christmas all.

All these suggestions work to a point.

This is all done with the black poly retic. gear.

The only way to really fix the problem properly, is to drop the tanks .

If the tanks are the black poly ones, on top you will find a recess with a thread in it .Also a small hole that is supposed to be a breather.

Next Drill a 10 or 12mm hole down in the recess where the breather is.

Buy a poly 12mm threaded male 90 degree barbed elbow and a plain barbed elbow.[or as many as you need] together with enough 12mm black poly tube to extend over the tank .

Screw the threaded elbow into the recess, attach the tube and then push the plain elbow in pointing downwards. That just stops the dust getting into the tank.

Don't forget to put the tanks back. HEEE Cheeky sod arnt I !! Well you never know.
Seriously, it does not take long to do.

That is what I did to mine and no more filling problems.

Tony

Hi all Had this problem all you do is wrap a hanky around the end of the hose and holld it in tight in the filler end and you will over come the back pressure. Buy doing this you get a better seal around the hose Yours PJK

Same problem all l did was cut a piece of hose about a foot long put hose fittings on then just push it down the filler pipe lets the air out and fill up 2 tanks very quick

l used a hose that went in easy so the air could come out up the sides