[cybersye]

Hi there,
I need to make a minimum of 300 litres a day from an ro, tds is in region of 360 -380 ppm
currently share a merlin at another property but will be setting up at my own place with water meter.
Not sure wether to go with another merlin as I'm metered and dont want to waste much on rejection as I'm in a flat and have no use for the waste ( no garden, water butts or header tanks I could use it for)
So what are my options?
Any advice much appreciated!
Simon

p.s. dont know what my mains pressure is though I live faily close to centre of Brighton so guess its pretty good, is there an easy way of calculating it by timing how long it takes to fill say a 25 ltr barrel and working it out from that?

[macc]

Hi.

Gardiner Pole Systems are coming out with a zero waste for the ro man. Im not on a meter but when they release it im getting it.

I got my ro set up from them. Total cost £619.05.
650ltr tank to the transfer hose.

Give Kirsty a call on 01726 61143, if you tell her what you need she will point you in the right direction, she sorted me out perfect. 

Macc

[welmac]

Hi.

Gardiner Pole Systems are coming out with a zero waste for the ro man. Im not on a meter but when they release it im getting it.

firstly im not trying to start off any arguaments or attemptinmg to slag any one off etc with this reply 

how do you get zero waste from an R.O unit? i have heard of another company doing these......but then all they were doing was running the waste water through a resin vessal. so yes it may be "waste free" but only because the waste is being purified through resin. but then its going to cost a fortune in resin, so is it cost effective???

The reverse osmosis process needs to have waste water. if it doesnt, then where is all the rubbish going? if it aint going down the drain and is simply being re filtered, then the membranes are not going to last too long.

i have spoken to many "R.O specialists" and they all say the same: "you need to have waste water on an R.O unit for it to run to its full potential. reducing the waste too much or altogether stopping it, will result in damage to the filter/membranes very quickly".

if gardiners have produced an R.O unit that runs without any waste (i take my hat off to you if you have) then i think they are going to do very well selling these not just to window cleaners, but to the majority of people requiring pure water.

Gary - WELMAC

[Alex Gardiner]

I'm glad you're not trying to slag anyone off! 

[jouk45]

alexg, has that new lighter vikan brush head on sale yet, the one you where telling us about a while ago thanks

[Alex Gardiner]

No not yet,

the trouble with a big firm like Vikan is that they take quite a bit of time to finish development.

However we do have a new super-lite brush (240g) on sale next month, it is part of our super-lite pole package which is being trialed by 10 customers at the moment. we have had positive feedback back about the brush so we think that we will start selling it separately beginning next month.

Alex

[macc]

Hi Alex.

Any news on the zero waste. 

Macc

[Tim Morton]

Hi there,
I need to make a minimum of 300 litres a day from an ro, tds is in region of 360 -380 ppm
currently share a merlin at another property but will be setting up at my own place with water meter.
Not sure wether to go with another merlin as I'm metered and dont want to waste much on rejection as I'm in a flat and have no use for the waste ( no garden, water butts or header tanks I could use it for)
So what are my options?
Any advice much appreciated!
Simon

p.s. dont know what my mains pressure is though I live faily close to centre of Brighton so guess its pretty good, is there an easy way of calculating it by timing how long it takes to fill say a 25 ltr barrel and working it out from that?

Hi Simon, I have a pumped 300Gpd Ro from Ro-Man and would easily produce 300 liters in about 5-6 hours. I have a 350Liter trailer mount and have filled it up in the morning and when I've returned home in the mid-afternoon the water butt's have been full. The waste to pure ratio is 1 to 1, my input tds is 186-195 and the pure is at 000-002. I would absolutely recommend this Ro, and because it's a pumped system you aren't worried about fluctuating mains pressure.


Tim

[freshwater]

Zero wast RO? I cant wait to see it and see how much it cost to run. In my experience the only way to save on waste water is to put it through resin, in which case you might as well not bother with the RO and just use the resin as all thge TDS that you are removing with the RO is ging into the drain line wich is then going through the resin. The other way is to re-cycle the dairn back through another RO, but the water from the second RO will have a higher TDS than from the original but you will be saving a bit of waste. The TDS has to go some where, it has to be taken out by someting.

We do some large double pass ROs which have three 4040 membranes with 3kw pumps which do 450 litres of pure per hour but they only acheive 75% recovery.

[cybersye]

Hi there,
I need to make a minimum of 300 litres a day from an ro, tds is in region of 360 -380 ppm
currently share a merlin at another property but will be setting up at my own place with water meter.
Not sure wether to go with another merlin as I'm metered and dont want to waste much on rejection as I'm in a flat and have no use for the waste ( no garden, water butts or header tanks I could use it for)
So what are my options?
Any advice much appreciated!
Simon

p.s. dont know what my mains pressure is though I live faily close to centre of Brighton so guess its pretty good, is there an easy way of calculating it by timing how long it takes to fill say a 25 ltr barrel and working it out from that?

Hi Simon, I have a pumped 300Gpd Ro from Ro-Man and would easily produce 300 liters in about 5-6 hours. I have a 350Liter trailer mount and have filled it up in the morning and when I've returned home in the mid-afternoon the water butt's have been full. The waste to pure ratio is 1 to 1, my input tds is 186-195 and the pure is at 000-002. I would absolutely recommend this Ro, and because it's a pumped system you aren't worried about fluctuating mains pressure.


Tim

thanks tim, i may look into that
I've checked my mains pressure now , its very good at 80 psi  , tds is 380 ppm though 
my static container is probably about 230 ltrs and the van mount tank 250 ltrs, so on a busy day i may need to refill midday - early afternoon ( no, I cant have a bigger static tank, airing cupboard in flat) could a 300gpd still be a viable option?
cheers
Simon

[jouk45]

great alex i cant wait to see it,

[Tim Morton]

thanks tim, i may look into that
I've checked my mains pressure now , its very good at 80 psi  , tds is 380 ppm though 
my static container is probably about 230 ltrs and the van mount tank 250 ltrs, so on a busy day i may need to refill midday - early afternoon ( no, I cant have a bigger static tank, airing cupboard in flat) could a 300gpd still be a viable option?
cheers
Simon

I've measured the output on my 300gpd pumped Ro and I get 40-45 liters per hour, this drops to about 35-40 liters per hour when the pre-filters need changing which in my case is about every 5-6 months, but you'd  need to calculate that for your own water usage.

Hope this helps

Tim