[mufcglen]

im getting my bits later to start my van system and will be just running one di then two when that one starts to rise but do you guys put the di's after the pump or before and does it make any difference?

[johnny bravo]

it will be cheaper making your pure at home , then transferring to your van.

[Simon Mess]

But if you cant, put the di after the pump

[mufcglen]

di after the pump, got it!
is there any reason or benefits being after than before?

[Simon Mess]

I'm sure someone with better understanding of these things than me can explain why......!. No, seriously, i think it is to do with having a MUCH greater chance of airlock problems.

All i know is that when i got my 1st system, it was set up pump then di, but for reasons i cant quite remember, i decided to change it round, so it went di then pump. Never worked properly like that!.

To minimize the risk of airlocks, have as short a hose as possible between tank and pump, with as straight a path as possible, and as few connectors as possible.

[dannymack]

I'm sure if you put Di after the pump the resin will last much longer as its going through quicker !!! 👍

[mufcglen]

your probably right pal when you think about all the connectors in and out of di etc when you can have a feed straight from tank to pump!
cant wait to get it all plumbed in now,did a first clean big old cottage yesterday with my trolley and think i filled my 25 litre tank about 4-5 times!

[Mike #1]

it will be cheaper making your pure at home , then transferring to your van.

Dont think so , Putting di on van ensures the water passing through DI is doing so a much lower flow rate ensuring resin lasts longer.

And when out if you start to run low on water you can always top up tank at a good custys house .

And no static tank or transfer pump to buy thus saving £2-300 straight away . Mike

[Simon Mess]

it will be cheaper making your pure at home , then transferring to your van.

Dont think so , Putting di on van ensures the water passing through DI is doing so a much lower flow rate ensuring resin lasts longer.

And when out if you start to run low on water you can always top up tank at a good custys house .

And no static tank or transfer pump to buy thus saving £2-300 straight away . Mike

I think what johnny bravo meant was that it is cheaper to make pure water at home using r/o in a static system than using di only in the van, which, unless you have exceptionally low ppm would definitely be the case.   

But you don't need a static system, if you have a driveway, you can use a small r/o and fill the van in the evening, which i do. A static system would definitely be more convenient though, and you get ibc tanks cheap enough.

[Clever Forum Name]

I think his PPM is very low like 60's if i remember rightly

[Smudger]

Di bottles go after pumps it's easier for the pump to push the water through than constantly trying to suck it through the resin which has some resistance and be a potential airlock point

Darran

[mufcglen]

Hi guys I'm not going ro route as my ppm is 70 round here and to be honest I won't be going through a lot of water everyday as I'm still building my round up so resin should last a while and hopefully longer if I do the two di vessel trick, the other thing is where I live it's not great for parking so would struggle to have a few hours to fill tank whereas I can just fill it in no time from a tap and away I go with di in the van, going to fit an inline tds so I can keep an eye on water as I work too!

[clarkson]

Di bottles go after pumps it's easier for the pump to push the water through than constantly trying to suck it through the resin which has some resistance and be a potential airlock point

Darran

Hi
I think this is correct all pumps pump much better
Than they draw water, I think the little sure flow/ flow jet
Pumps would have tough time drawing water
Through the di at all.

Regards

John

[johnny bravo]

i meant , get an ibc tank     around £30+,     300 ro system,    leave running all night or all day.  holds 1000litres. a good reserve.    while out working your ibc tank will be filling up.   ready for your next day.     just using your ro+di vessel to filter it into ibc tank.

at the moment i am filling a 220 litre water butt up,  transfed to my water drums,   store and keep filling water butt up,      untill i get my ibc tank to store more water  into it.

im sure you know what i mean

[Clever Forum Name]

Sod that, if you are building a round. I would seriously look at catching rain water instead.

[mufcglen]

hi guys i had a 600 ltr ibc tank and planned to go down the ro route but didnt want all the hassle of having to pump it though the house into the van or having to have a big tank laying about so will see how my di bottles last especially using the two di bottle trick and see how it goes!