Need advice on pure water production!

[wee man]

But surely any money you spend on resin comes if your tax bill anyway.

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[wee man]

Comes off *

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[Iron Giant]

But surely any money you spend on resin comes if your tax bill anyway.

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Yes of course it does, But no point in spending when you don't have to. Let's get ridiculous for a moment if you had 10k to spend would you spend it if you didn't have to. With tax and ni at 30% that's 3k off 10k.

It's false economy to spend for the hell of it.

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[Part Timer]

But surely any money you spend on resin comes if your tax bill anyway.

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You only save 20% of that in tax

 

[J and S]

Adam....I'm saving on water rates....fill up at customers wherever possible.

Saving around 5 or 6 pounds a week so worth it for the speed of fill and a lot less faff.

 

[spruce]

Its all about how you work with your business.

I can't see why someone would not want to use an r/o system to purify water if they aren't on a meter. Mine has always worked perfectly. But there are so many cleaners who have trouble with getting their r/o systems to work.

If I was one of these I would go for the easiest method of purifying water, even if its cost was more. So I can understand why someone would go down the resin only route.

 

[Cristian]

Double di is the way to go Cristian how much water do you think you'll use per day

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I will be looking at probs 350 to 500 litres a day , starting to think here that a double di will be the way forward but just can't make my mind up  :1f635:

 

[Scots lad]

At those levels if your ppm is like mine 36
You would use 2 bags of resin a year double di

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[Cristian]

At those levels if your ppm is like mine 36
You would use 2 bags of resin a year double di

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Last time I checked my ppm it was 46 , twin DI is easiest way but still can't decide what's best way forward. 

 

[Cristian]

Your tap water is pretty low so if you are on a water meter then I would advise going double DI.

With a DI Vessel you will get the same flow rate from your tap around 11/15 litres per minute. Where as with the 450  R/O system you will get around 700ml to 1 litre a minute. It will waste 1.5 litres a minute.

With the R/O you should get 000/0001 ppm with your input TDS

Doug,  how much pure will this system make before filters need changed and at what tap pressure. And does it use 1/4" hose and fittings? 

 

[Iron Giant]

Last time I checked my ppm it was 46 , twin DI is looking like the way I'm going to go now for no hassle pure production! Many thanks   :1f44d:

No hassle production is way off you need to keep a close eye on tds as it can spike within hours, Ohh and their is resin shortage in the UK  :1f602: . 

 

[Cristian]

Yeah been reading about a resin shortage, this is getting me thinking more along the lines of an RO now. And point taken regarding TDS spiking using only resin.  

 

[Iron Giant]

Doug,  how much pure will this system make before filters need changed and at what tap pressure. And does it use 1/4" hose and fittings? 

1/2 inch hose from tap to RO and standard JG tubing on the RO, I have really good tap pressure and have never had any issues or considered buying a pressure gauge. I use 300-350 ltrs of pure a day i was changing my pre-filters every 12 weeks but the new Fiberdyne CFB Plus Sediment/Carbon pre-filter lasts twice as long . 

I have a 1 CFB and a separate sediment filter as a safeguard so will now change once every 24 weeks @ a cost of £25.00 for the two, But if you aren't sure if you get a lot of sediment in your water best to check sediment filter sooner just as a safeguard. 

 

[Cristian]

Thanks for the info, does Dougs 450gpd system come with the filters your talking about? 

 

[Cristian]

As far as I can tell I don't have sediment in my tap water and can I use 8mm minibore to feed the RO? 

 

[Iron Giant]

Not sure about pre-filters or the 8mm hose, If he doesn't or isn't able to answer on here then use the contact form on his site http://daqua.co.uk/contact.php

 

[Jordiebarrett]

As far as I can tell I don't have sediment in my tap water and can I use 8mm minibore to feed the RO? 

The sediment is on the micron level of size so you have it but can't see it. The pre filters also get rid of other bad stuff such as chlorine in the water which damages your membranes, so you get that taken out to prolong the life of the. Our ro we feed mains pressure via a piece of hose pipe...

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