buying pure water v making own water cost

[noddy]

3000l is that your waste also

no that's what we use daily at the minute it goes up and down depending on what kind of work were doing

I always have 3000 stood ready over the weekend and I fill the vans ready for Monday to give us a head start for the week , I never turn the water off really that's why I now need to find a better system to make water

sometimes they might only use 600 a day each , ive seen two of us use 1200 on a day you only need too throw in a few roofs and a big job and we use it all

 

[Duncs]

my TDS reading was normally 170 ish just checkd its dropped to 60

going to keep steady check maybe could chance DI only

the volume off water I,m using is a concern 1800 pd with third van ready to go also

its a pity there is no way you could use your waste also

 

[Duncs]

I,m getting the RO set up so its auto which will be great help also

 

[CHWS]

Why does tds fluctuate from our tap? Mine's up to 80 and was 49

 

[Den]

Mine was 270ish last year then went up to 310 and now today it's 295.

 

[Duncs]

yeh CHWS worth keeping eye on it

now I know how my filters and resin was lasting so long

 

[spruce]

Why does tds fluctuate from our tap? Mine's up to 80 and was 49

It depends where the water is sourced from. Ours comes from Kielder but I was told by a local Northumbrian Water employee that they also have several local dams they draw water from for our particular area.

.

 

[CHWS]

Interesting and costly. I only noticed as my resin literally lasted me half the time. So I've now ordered a 400gpd ro and I'm going to make pure and store in an ibc tank. As I've only a 250 litre tank in my van and I will need to fill up when out working. Is it possible to keep it linked up the way it is and the 0tds water continuing to run through the di vessels in my van will essentially not use any of the resin ??

 

[Lawrence Morgan]

If your on a meter why don't you fit a 2nd meter on the outside tap and your water board will not charge the waste charge pn water from their so the price of water should half.

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[Green Pro Clean Ltd]

If your on a meter why don't you fit a 2nd meter on the outside tap and your water board will not charge the waste charge pn water from their so the price of water should half.
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Sorry. Why would they not charge?

It will have gone through the main meter before going through the second meter you fit anyhow. They will bill whatever that first meter says.

Also I'm rather perplexed. Water is going to cost regardless. See the math above. It aint going to cost anywhere near enough (vs profits) if you've set up right to worry about.

 

[CHWS]

Interesting and costly. I only noticed as my resin literally lasted me half the time. So I've now ordered a 400gpd ro and I'm going to make pure and store in an ibc tank. As I've only a 250 litre tank in my van and I will need to fill up when out working. Is it possible to keep it linked up the way it is and the 0tds water continuing to run through the di vessels in my van will essentially not use any of the resin ??

@spruce ??

 

[spruce]

@spruce ??

Sorry @CHWS. I read your post yesterday but as I was suffering with the aftermath of a migraine I didn't understand the question.

I've read this now so I think I understand what you want to do. Please correct me if I'm wrong.

I understand that you want to process water into an IBC tank with your new r/o and then transfer that 0ppm pure water into your van. Currently you top up from customer's taps on route as you only have a small tank in the van and its not enough to last through the day. So I'm gathering that you fill your tank from a customer's tap directly into your van's tank and then pump that water via your di vessel/di vessels and then onto your brush head.

So if you come home at night with an empty tank and you transfer a full 250 liters of pure into your tank you would expect the water to be 0ppm when the tank in the van is full. If you just carried on as usual and pumped that water through the di/dis and onto the brush head you will not use any resin as the water is pure to begin with.

If you have 125 liters of pure left in the tank and you fill up with water at 80ppm then you could expect the water in the tank to be at 40ppm when its been thoroughly mixed together. Your resin will only be doing 1/2 the job by polishing the water off to 0ppm than had it polished off the water at 80ppm.

 

[CHWS]

Sorry @CHWS. I read your post yesterday but as I was suffering with the aftermath of a migraine I didn't understand the question.
I've read this now so I think I understand what you want to do. Please correct me if I'm wrong.

I understand that you want to process water into an IBC tank with your new r/o and then transfer that 0ppm pure water into your van. Currently you top up from customer's taps on route as you only have a small tank in the van and its not enough to last through the day. So I'm gathering that you fill your tank from a customer's tap directly into your van's tank and then pump that water via your di vessel/di vessels and then onto your brush head.

So if you come home at night with an empty tank and you transfer a full 250 liters of pure into your tank you would expect the water to be 0ppm when the tank in the van is full. If you just carried on as usual and pumped that water through the di and onto the brush head you will not use any resin as the water is pure to begin with.

If you have 125 liters of pure left in the tank and you fill up with water at 80ppm then you could expect the water in the tank to be at 40ppm when its been thoroughly mixed together. Your resin will only be doing 1/2 the job by polishing the water off to 0ppm than had it polished off the water at 80ppm.

Brilliant in depth reply :thumbsup: got my 400gpd ro producing at the minute