[Sean Dyer]

Im moving in january to a place with internal garage and am hoping to put a static system together just a couple of questions:-

what ro will i need to easily fill 1000 litre ibc each night??

and at a water tds of 30- 40 is there any point with ro will i save money or just do di???

[Slash]

I would'nt bother with a RO unit if your tap tds is 40

[Lee Pryor]

i agree, just a nice big di vessel say 25ltr,,,,,,,,,, its alright for some eh!

[dd]

How much water do you actually use in a day?

I find ro-man 300gpd unit economical to run (Though you can't buy it from ro-man, other suppliers sell similar or same).
Waste water ratio is good and filters not too expensive. You should be able to use ro water direct and dispense with resin.

[Slash]

If your on a water meter I would definetly go without the RO but I would definetly go without it anyway if my tds was that low

[MoemGorod]

Hi Sean.

Of course, with you 40ppm tape water you dont need any RO for your static system.

Just set doubled DI vessels (25L+4,6L or 6,9L+6,9L depends of your DI water usage. Use http://www.cleantech.co.uk/tdscalc.htm) and add inline dual TDS -meter. Change DI resin in second vessel when tds >0ppm, and in first vessel -  only when tds = tds_tap_water. 

Best regards.

Merry Christmas

Vadim

[Sean Dyer]

If your on a water meter I would definetly go without the RO but I would definetly go without it anyway if my tds was that low

cool just wondered

thanks

will go for the double di and just fill straight into van!

[Window Washers]

40 tds is low, but I would still go for 4040 RO, unless your tds is 15 or less

totally agree, over time it will cost you alot more di only ask Dave morris

[Sean Dyer]

o ok

that was my first thought but with so many people saying otherwise i didnt know

but i suppose if i get a merlin for £215 it will pay for itself in time, got a 1000 litre ibc for nothing so saved there

[ronnie paton]

sean mine is about 50 and i use a di it cost about £80 eery two months per van(one bag lasting two months) you could save money by having a ro which is somethng a may do soon.

[jr windows]

My tap tds is 237 and in the last 3 years I've spent £36 in di resin. I use a merlin so they are not to expensive to run.

[mark dew]

Anything above a 300gpd ro with booster pump will fill an ibc each night.
At £80 in resin every 2 months, a ro and booster pump will pay for itself soon after 6 months. You wouldn't need any resin then.

[Sean Dyer]

i think i am gonna get a ro , should i get a 4040 or merlin?

for 1000 litres a night

[poleman]

if your on a meter then 40 40 as merlin has a hell of a lot of waste water!

Andy

[Sean Dyer]

not sure about meter
i dont at present, but new place might?