[Clever Forum Name]

I have a 400L and a 500L tank joined together via the outlets.

I have the the ro feeds going into the 400L.

I would expect them to be fairly level as the water is produced, maybe the 400L being slighter ahead?

As it stands i have around 300L in the 400 tank and about 75L in the 500L tank.

What is going on, as surely that's breaks physics law? I though they would even out?

The pipe connecting the two is just hose pipe with connectors. One of the connectors is a bit smaller than the hoselock fitting, but not by much.

Should i link the tanks with the biggest hose possible? Which i could do?

[Ben wood]

You would be better of filling the 500 as more pressure when full will push the water in the 400 tank.

[Clever Forum Name]

You would be better of filling the 500 as more pressure when full will push the water in the 400 tank.

Ah yeah good point! Thankyou

[Spruce]

Unscrew the lid of the 500 litre tank and see what happens.

Some lids have a one way air vent so they will allow air in but not water out.

[Don Kee]

Heard of this before, someone i know had the problem with water butts. Something to do with the outlet cant let the water out fast enough, so you need less water in the other tank to make equal pressure so the water wont transfer (something along those lines i think...)
He joined them together in the middle as well but if you cant do that, put a splitter on your r.o so it fills both at the same time? Have a shut off so it can stop the feed gling to the 400L when its full..?

[Clever Forum Name]

Neither has lids, but thanks guys makes sense.

It's do with pressure, gonna look at one RO Filling one tank, and the other filling the other.

If they flood they go to drain anyway.

Will update once i have had a play. Thankgod for taps lol

[Dave Willis]

No lids? So how does the air escape from the tanks particularly the second one as it fills up?

[Spruce]

No lids? So how does the air escape from the tanks particularly the second one as it fills up?

Exactly. What tanks are they?

[Clever Forum Name]

Through the massive hole coz the lid aint screwed in  

[Smudger]

I think he means no lid in the opening guys....

Are you filling from the top or bottom ?

Darran

[Clever Forum Name]

I think he means no lid in the opening guys....

Are you filling from the top or bottom ?

Darran

Correct Top....And they are linked at the bottom.

its gonna be far simpler to put one ro pipe in one tank, and the other one in the other tank.

[Dave Willis]

Ok does the second tank have a vent in the top to let the air out as it fills from the bottom?

[Smudger]

I fill from the top and have a y connector so water is fed equally into each tank both remain level HTH

Darran

[Clever Forum Name]

Ok does the second tank have a vent in the top to let the air out as it fills from the bottom?

They are both wydale tanks a 400 and a 500.

So where the lid would screw in (6 inch and an 8 inch) its just a massive hole. So air can escape

[Clever Forum Name]

I fill from the top and have a y connector so water is fed equally into each tank both remain level HTH

Darran

In an ideal world we would have IBC's but just nowhere to put em Grrrrrrrrrrrrrr

Yeah i think the key here is to split the water

[Dave Willis]

Ok does the second tank have a vent in the top to let the air out as it fills from the bottom?

They are both wydale tanks a 400 and a 500.

So where the lid would screw in (6 inch and an 8 inch) its just a massive hole. So air can escape

And you take both lids off even though you are only filling one?

[Smudger]

Depending on your daily water usage you can have 2 ibc's stack one on top of the other, have an independent hose in and out to each,  I have 4 linked as 2 pairs upper and lower set.   

Darran

[Clever Forum Name]

Depending on your daily water usage you can have 2 ibc's stack one on top of the other, have an independent hose in and out to each,  I have 4 linked as 2 pairs upper and lower set.   

Darran

Its space, have run out lol.

[Clever Forum Name]

Ok does the second tank have a vent in the top to let the air out as it fills from the bottom?

They are both wydale tanks a 400 and a 500.

So where the lid would screw in (6 inch and an 8 inch) its just a massive hole. So air can escape

And you take both lids off even though you are only filling one?

Yeah, just unscrewed em both and left em off. The tanks are covered in black poly, so no light is getting through. A gap between the poly and tank exists as well

[Smudger]

The footprint of one ibc tank must be smaller than the 2 tanks side by side ?

Darran