[collins82002]

please could someone advise me on a ideal wfp setup on a 250l tank van mounted system.

what type of r/o & di etc

thanks.

[jsm]

for a start id get at least 400 ltrs tank- I use that on my own in a day.

Ro V Di
all depends what your water tds is - under 100 may be cheaper to just di - if its near the 400 like i had in essex years ago Ro all the way then di to polish

[matt]

ive allways used under 250 L's

i used to take 10 X 25 L barrels and allways came back with 1 or 2 barrels of water

[Londoner]

My 250 litre tank lasts me all day.

[cybersye]

please could someone advise me on a ideal wfp setup on a 250l tank van mounted system.

what type of r/o & di etc

thanks.

Hi
as for ro and di depends on your water quality and how quickly you need to make it, if you only going to need 250 ltrs a day and have space for a holding tank to transfer water to your van then a cheaper ro that produces slowly but can be left on while out working will be sufficient.
When I had a 250 tank I used a merlin as it would produce fast but with higher tds = more resin but I do not have the space to store vast amounts of pure water, hence I now have a 4040 ro much more efficient for my needs but initially more expensive. Also depends really if you are on a meter or not.
Post a bit more info and I'm sure others can help you make the right descision.
Simon

* oh and btw I'd suggest getting a 250 upright tank as when you get low on water its easier to keep working else unless you park on hills/kerbs chances are you'll suck air, a varistream or similar will also help you make the water last longer especially on repeat regular cleans where you can use a lower flow rate 

[collins82002]

Thanks for info.  I.ve only got a small 1.4l petrol van so a 250l tank would do.
I want pure water as i go so it all has to be on board the van, filling up as i go long would be ideal
There are so many system available and my brains pickled to choose the right one.
Ive looked at the freedom trolley but the price for the set up inc the R/O & DI etc is more i think than having a van setup.  I live in Tamworth stafforshire so i dont know what the tds reading is until i get a tds meter and test it.

[matt]

as you will only be using 250 L per day

personally i would go with a smallish RO to start off with and run it into 2 X 210 L rain water butt's ( thus 420 L )

you can start the week with 250 in the van, 420 L in the rain water butt's

so even though your RO will not produce the quantity you will use per day, you will have 2 extra days ( sat and sunday ) to have a headstart on the water

you can then if you need the extra water just add a 2nd 100 GPD membrane onto your setup and you will have enough

[matt]

collins82002, you could of course build your own system

e.mail for a link to the DIY site /  forum

diywfplink@yahoo.co.uk

[collins82002]

Matt you have mail

[mark dew]

collins, don't forget to get a flat tank rather than an upright.
I tried both when i had a little 1.4 petrol escort van and the flat tank doesn't make you feel like you are at sea in a storm when driving.

[collins82002]

thats what i wanted

Cheers

[collins82002]

i got a vaux combo. 1.4l petrol van
ok for WFP startup i suppose as im trad a mo

[mark dew]

I use a 300gpd RO with booster pump and collect it in a rain butt.
For the van it is just a water tank (250litres in yur case), some inch hose running from the tank to a flojet pump. Put an on off valve between the water tank and the pump to regulate the flow. Oh and also a strainer to collect any debris.
After the pump another length of inch hose to connect to your hose reel.
Then it is just your pole of choice.

I also use the tank fitting straps from cleantech. They are about £100 or more i think.
Any garage which does mechanical repairs will be able to fix the tank fixings to your van. It cost me £80 a couple of years ago.
And that's it.

Matts wfp site will explain the process easier than you can find anywhere else.

[matt]

i might have the site setup with my van mount early next week, as i have done the bits on how i have secured the tank, i hope to get the pump and such done this weekend

[collins82002]

found a DIY website just gotta wait for registration confiramtion from them
is this yours mat??

[Jason Atwell]

250 litre DI only system

[collins82002]

good setup

cheers

[collins82002]

is there a setup available that you can use and fill and use while you work etc  if you know what i mean

[dd]

Do you know the payload of your van?         

[mark dew]

is there a setup available that you can use and fill and use while you work etc  if you know what i mean

Yes, have your ro unit at home in the shed making water into a rain butt or something. Then transfer it to your van tank when needed.