[rl]

hi, i have a tds of about 57. Have been planning on getting just a Di vessel. If I went for a RO unit, would the RO unit bring my TDS down to 0ppm or woould I still need the DI??

[vision tech]

wish mine was 57,mine is 100, i think even if you have ro system you still need a di vessel to finish of .

[rl]

cheers I thought I would still need the DI, ye I think i'm lucky with the TDS reading!

Don't suppose anyone knows a super cheap website for DI Vessels, did find one a while ago that was cheaper but can't remember the name of it!

[pure tech]

My tds is around 85ppm and my RO produces 00-001ppm and I have never used resin.

[rl]

thanks. 

now i'm confused    i guess the RO unit will work out cheaper in the long run? I'm on a water meter but I can fill up at my mums so that not a problem. Any advice on what RO unit would be ok? Don't need to be producing loads of water yet so something cheap and cheerful that does the job.

[rl]

also how long does it take to produce say 250ltrs of water using a RO unit?

and how long would a DI unit take to do the same amount?

[pure tech]

Just be aware that  tap water pressure needs to be around 60psi or more for good RO performance.

[jouk45]

you only need a di vessel, that is soft water you have, the resin will last for ages, sames as me

[vision tech]

you only need a di vessel, that is soft water you have, the resin will last for ages, sames as me

 

I think your wrong mate resin will not last for ages, my tds is 100 i have 2 di vessels 11 ltr ones, resin lasted 3 wks, if i could go the ro way i would jump at it.

[jouk45]

no am not wrong, been using it for 6 years now. i think others are mislead into using ro machines when not needed, 57 is low tds, mines lasts for 4 to 5 months,  something is wrong at your end  : and i use only 1 17inch by 8 di vessel

[jouk45]

all i know is by your tds 100ppm and you using 2 linked di vessels and only getting 3 weeks is there is something wrong there, unless you do hundreds of windows everyday of the week, and if that is the case, it does not mean the di is not suitable for someone who may only do 40  houses a day
 
 
 

[rs_cleancare]

do any of you know the calculation for tds reading per ltr of resin. This would be able to give excact amount of water you can produce therfore work out cost.

[jouk45]

yes there is, but is the calculation for regenerated or virgin resin, no one tels you that, regenereated you would get a lot less, and that is what most supplies where selling, i now use tulsion only

[tacky]

i have 2 .18 inch di tds comming out of first di 61 going into second di .now comming out of second di 001 i only use about 400 ltrs  per week as im trad n wfp .at moment i have had 7 weeks of water with out changing resin  .tap water 110tds .

[vision tech]

I think the reason my di only lasted 3 wks is because i have just started wfp after being trad for many years,and i am taking more time doing the frames,im using 500 ltrs a day sometimes more.

[rl]

now really confused! 

I'm only going to be doing 1 day a week to start with, but obviously intend to get up to 5 days eventually (but intend to take my time as have full time job to get out of!) Really to be honest, at this stage I am looking for the cheapest possible way to get started and once I see that it's going to work i'll invest in better stuff.

So in your opinion whats going to be the cheapest way to get going RO or DI, as long as I get a 000 or 001 reading i'll be happy.

[pure tech]

If you go  RO check out collinswaterproducts.co.uk, they sell a 300gpd for 129.99.

[rl]

cheers for that, seems cheap!

[Rams75]

tacky

ur tds is 61 after the fisrt vessel

what is it out of the tap?

[rl]

does anyone have an idea of how long a 300gpd RO unit will take to produce say 250ltrs of water compared to a DI vessel, are we talking ages and ages or quite quickly. and is there a big difference between the RO and DI

cheers