Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Clear Vision on January 26, 2007, 08:36:20 pm

Title: A few questions for my ro unit
Post by: Clear Vision on January 26, 2007, 08:36:20 pm
I bought this little ro unit off ebay as I got it very very cheap :D Its brand new!

The only problem with it, is that it takes day's to fill half an ibc tank :(

I can only assume that my mains water pressure is low?

How can I boost my pressure reasonably cheaply? Booster pump? Are they mains operated? Or 12v?

Just now I have the unit in the van filling up my tank as I'm shifting my static tank around at the mo so cant fill it.

Just wondered if i took/disconnected the red inlet pipe off and the waste off at the unit would it leak? So I could leave the unit in the van while I'm out at work and just connect the hose when I come back at night. Are/do the fittings act like a stop end?

Thanks in advance ;)
Title: Re: A few questions for my ro unit
Post by: Clear Vision on January 27, 2007, 10:03:13 am
Can no one give me any advice or point me in the right direction?  :'(
Title: Re: A few questions for my ro unit
Post by: H h20 on January 27, 2007, 10:06:18 am
Matt what gallons per day rating is it?
Gaz
Title: Re: A few questions for my ro unit
Post by: MNWC on January 27, 2007, 03:56:04 pm
How about this-

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260080037696#description ;)
Title: Re: A few questions for my ro unit
Post by: Clear Vision on January 27, 2007, 04:42:14 pm
Matt what gallons per day rating is it?
Gaz

100 gpd.
Title: Re: A few questions for my ro unit
Post by: Clear Vision on January 27, 2007, 05:57:14 pm
How about this-

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260080037696#description ;)

Thanks marcus  ;)
Title: Re: A few questions for my ro unit
Post by: Clear Vision on January 27, 2007, 05:58:19 pm


Just wondered if i took/disconnected the red inlet pipe off and the waste off at the unit would it leak? So I could leave the unit in the van while I'm out at work and just connect the hose when I come back at night. Are/do the fittings act like a stop end?

Thanks in advance ;)

Could any experienced ro user answer this?
Title: Re: A few questions for my ro unit
Post by: MNWC on January 27, 2007, 06:40:38 pm
When you take the tubes off they will leak until the RO is depressurised
Title: Re: A few questions for my ro unit
Post by: Clear Vision on January 27, 2007, 06:43:12 pm
This might sound silly marcus but how do I depressurise the unit?
Title: Re: A few questions for my ro unit
Post by: Alex Gardiner on January 27, 2007, 07:15:13 pm
A 100gpd unit will only generally produce about 300litres per 24hours as standard. If your 1000litre IBC is taking 3 days to fill then it is about right.


If it takes much longer then you are on low pressure. There are two solutions, increase your pressure (pump) or increase your membrane count. You currently have just 1 membrane which can be increased to 3 membrane this will give you about 2.5 times the production rate. The cost for each membrane and fittings is quite reasonable for the benefit you will get.

Your unit could be left in the van, the easiest way is to leave the end of the waste poking through the floor of you van and then if it does dribble the waste will only go outside. The fittings do not work like a stop-end.

The reason that your unit was very cheap is that it is not that well specified for your purposes. It hasn't got a built in pressure gauge this would tell you exactly what your tap pressure is and also when to change the pre-filters. Also you could do with an inline tds meter to let you know when your resin chamber needs re-charging. You can quite reasonably add both of these items to this unit though.

Alex
Title: Re: A few questions for my ro unit
Post by: Clear Vision on January 27, 2007, 07:26:21 pm
Thanks for you reply alex.

Membrane increase? What on earth is that? It's all foreign to me :-[

Where can I get the spare filters/membranes/in line tds & pressure gauge from?

Will I have to purchase from the company that supplied it/made it?

Are my parts a standard fit?

If you could help me beef this little unit up please could you email me some more inf and prices and we can take it from there.

Kind regards
Matthew

Title: Re: A few questions for my ro unit
Post by: JM123 on January 28, 2007, 12:27:05 pm
You will need to add at least one more membrane, and change your sediment and carbon filters - look at them, they should have been changed a long time ago, if you feel your pressure is too low add a booster pump.

you can get all this at ro-man
Title: Re: A few questions for my ro unit
Post by: Clear Vision on January 28, 2007, 02:19:29 pm
and change your sediment and carbon filters - look at them, they should have been changed a long time ago,

Sorry but I'm not with you on that one ::) ???

I am still producing 000ppm water with this unit so why do I need to change the sediment & carbon filters? It's only produced about 2000L. Surely I don't need to change the filters?
Title: Re: A few questions for my ro unit
Post by: Clive McDonald on January 28, 2007, 05:22:36 pm
Why not buy completly new kit including a bigger rated RO and a booster pump, and use the above as spares?

You come across as running a very proffessional business, with a well kitted out Van, and some enviable accounts. For about four hundred pounds all of your water supply needs would be sorted.
Title: Re: A few questions for my ro unit
Post by: Jon T.C. on January 28, 2007, 05:30:56 pm
Look here, or ring them www.ro-man.com (http://www.ro-man.com)

regards Jon
Title: Re: A few questions for my ro unit
Post by: Alex Gardiner on January 28, 2007, 09:01:05 pm
Hi Clear Vision

All the parts on your system are completely standard and easily upgraded or interchanged.  RO-man will supply all those bits or even ourselves! (give us a ring on the office number as the parts aren't on the website).

Membrane increase purely refers to adding another complete RO membrane (the large horizontal chamber on your RO Unit) to your current system.
Title: Re: A few questions for my ro unit
Post by: Clear Vision on January 28, 2007, 09:24:52 pm
Why not buy completly new kit including a bigger rated RO and a booster pump, and use the above as spares?

You come across as running a very proffessional business, with a well kitted out Van, and some enviable accounts. For about four hundred pounds all of your water supply needs would be sorted.


Thanks, but I like to make use with what I have ;) Might upgrade when I get another van on the road.
Title: Re: A few questions for my ro unit
Post by: Clear Vision on January 28, 2007, 09:32:08 pm
How do you power the in-line tds meter from ro-man? AA battery?

Clear Vision
Title: Re: A few questions for my ro unit
Post by: Clear Vision on January 28, 2007, 10:11:14 pm
How do you power the in-line tds meter from ro-man? AA battery?

Clear Vision

Anyone know before I hit the sack?
Title: Re: A few questions for my ro unit
Post by: Clear Vision on January 28, 2007, 10:46:52 pm
Come on chaps! Falling asleep here
Title: Re: A few questions for my ro unit
Post by: Clear Vision on January 28, 2007, 11:01:41 pm
Don't worry! Found out myself ;)
Title: Re: A few questions for my ro unit
Post by: Extremeclean on January 28, 2007, 11:08:58 pm
The batteries come with the unit. Don't waste your money though. Just use a handheld TDS meter. Those blue faced inline ones can be very innacurate.

You wont get 100gpd out of that unit either even with a booster pump or very good mains pressure. 200GPD and you will be doing well.  The figures for output quoted for RO's are based on water conditions which we just dont get in this country. One of them being water temperature. Normally the output figure is quoted at 25 degrees C. You wont ever see mains water in this country anywhere near that. Basically I think you have bought merely on price without looking into it deeply enough or really understanding what you were buying.

You arent alone though.  I bet most of us here have done that at some time and lived to regret it.
Title: Re: A few questions for my ro unit
Post by: Clear Vision on January 28, 2007, 11:16:42 pm
Well extreme clean thanks for your advice and comments.

4 days to fill my 1000L tank! I only use about 250L for a average day's work.

So as you pointed out to me "I think you have bought merely on price without looking into it deeply enough or really understanding what you were buying" is a bit unfair to say that.

It's doing a job for me at the mo so what more can I ask for?

I can assure you that I fully understood what I was buying!

I usually purify my water through a di vessel as my tap tds is only 030ppm.
Just bought it as it went cheap on ebay and I thought I could use it as another option to my di vessel. (when my ressin runs low)

 ;)