[biggles]

morning wcs anyone d i only if so can you give us some info. so i have a rough idea how much i will spend on resin .                                                                                                                         what is your tds before resin                                                                                                                             how much water do you use per month                                                                                                                       how much resin do you use per month                         thanks for any replies     biggles                                                    

[Ian Rochester]

I wouldn't advise anyone to be just DI.

If your main water is above 70-80ppm then you need to be looking at RO rather than just DI as you will spend a fortune in resin

[Orange WC]

I am DI only.

Tap water 055ppm.

I use roughly one bag every 4 weeks costing me..

£80 per 4 weeks, £20 per week or £4 per day...

Not much really when you have Pure Water on demand and large amounts in minutes!

Why wouldn't you advise it Ian? Just because of the cost?

[R W C™]

I am DI only.

Tap water 055ppm.

I use roughly one bag every 4 weeks costing me..

£80 per 4 weeks, £20 per week or £4 per day...

Not much really when you have Pure Water on demand and large amounts in minutes!

Why wouldn't you advise it Ian? Just because of the cost?

Cor blimey im glad im not DI only, glad i paid out for a 4040, £1040 a year on resin 
thats probs why he doesnt recommend DI only.

[biggles]

but how much water are you producing per month for a bag of resin

[Orange WC]

It sometimes varies, not sure why.

20,000 - 25,000 litres

[R W C™]

How many vans is that filling...

[Orange WC]

One

[biggles]

that is good value if you ask me

[Orange WC]

I thought so too pal.

[JamesTurnbull]

if you put it through a merlin, which has a quick flow rate, that would save DI costs?

[Sunshine/Cleaning]

DI only ppm 50-65.

2-3 bags a year. Saves having to store it.

I double DI as it saves 66% if you want advice feel free to phone. Numbers on my website.

Stuart

[Blue Frog Systems]

Double Di is the way forward.

I run an RO but have a double di. When your first cannister hits 5ppm then stick another cannister after that (between the one that's hit 5 and your storage)

Doing this has save me a fortune on resin. I used to get through a 5L bag every 2 months, now I'm going between every 5-6 months.

I think if your di only or ro & di that double di is the way forward

[williamx]

Tap water tds 72.

I run 2 DI Tanks in tamden, I stir the resin in both tanks when the one with the newest resin reaches 5 tds this reduces the tds to 000, I kept on doing this until the tds stay on 5 tds, I then change the resin in the oldest di tank which reads the same as my tap water and rotates the 2 di tanks around.

I only need 2 bags of resin every year which I feel is cost effective.

With a RO system you do have a lot of waste water and if you are on a meter this can be very expensive.

[jonboywalton75]

Tap water tds 72.

I run 2 DI Tanks in tamden, I stir the resin in both tanks when the one with the newest resin reaches 5 tds this reduces the tds to 000, I kept on doing this until the tds stay on 5 tds, I then change the resin in the oldest di tank which reads the same as my tap water and rotates the 2 di tanks around.

I only need 2 bags of resin every year which I feel is cost effective.

With a RO system you do have a lot of waste water and if you are on a meter this can be very expensive.

Just out of interest, how much water do you get through in a week?
I  only use 400L a week, ish. I Single DI if thats an expression we use on here.

[biggles]

some great advice on this subject, gonna defo do a 2 d i  set up with no ro . tap water is only 60 tds and only need 1500 litres a week should not be that expensive. no more filters no more waste water i am on a metre , plus fill my tank up in 15 mins when i need it .thanks again   

[Ste M]

2 di set up for me as well, i bought my set up with a 4040 second hand and the waste water was silly, i couldnt justify it all especially as im on a meter as well.

[dai]

I have been on double DI for 3.5 years now, I think I was one of the first to post on it. Tap TDS around 55.
I will have to try this stirring though, I have been a bit lazy on this one, just binning the resin in the first cylinder when it read the same tds as tap water.
Don't do what I did last week and leave the water on all night, flooded the back yard with pure water, and it was still reading zero on the tds meter.

[williamx]

Tap water tds 72.

I run 2 DI Tanks in tamden, I stir the resin in both tanks when the one with the newest resin reaches 5 tds this reduces the tds to 000, I kept on doing this until the tds stay on 5 tds, I then change the resin in the oldest di tank which reads the same as my tap water and rotates the 2 di tanks around.

I only need 2 bags of resin every year which I feel is cost effective.

With a RO system you do have a lot of waste water and if you are on a meter this can be very expensive.

Just out of interest, how much water do you get through in a week?
I  only use 400L a week, ish. I Single DI if thats an expression we use on here.

I have a 650 litre water tank in the van and I fill it up around 3 times a week.

[♠Winp®oClean♠]

Been twin DI for 6 years now.

Tap tds= 90ppm

Use 2 bags of resin per year. So, anual cost of £145


500ltr van mount.

THID IS THE IMPORTANT BIT- FLOW-RATE Vs VOLUME OF RESIN.

I would advise no less than 11ltr vessels & purify ON-DEMAND. Do not fill through vessels into tank, instead, fill tank from mains & pump through vessels to pole.