Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Mr.G on May 26, 2010, 04:08:54 pm
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Just been told by a supplier that it only works out to 16p a house, using D.I with no R.O? in a hard water area? what do you think?
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would never work without my ro m8 :)
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what is ur tds on ur water, what size vessel will it be
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If you can produce water and store it , I would suggest going for an 300 gpd RO system mate...
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Just been told by a supplier that it only works out to 16p a house, using D.I with no R.O? in a hard water area? what do you think?
It would be interesting to know who the supplier is, and what type of resin they are offering
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thanks for the quick replies!
it's over 300 tds
its a 25 litre D.I.
I was thinking of an R.O but I gather a lot of waters wasted and I'm on a water meter.
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the supplier's Window Cleaning Warehouse
http://cgi.ebay.co.uk/COMPLETE-PACKAGE-WATER-FED-TROLLEY-Window-cleaning-/350311993917?cmd=ViewItem&pt=UK_HomeGarden_CLV_Cleaning_CA&hash=item519038d23d
Do you think the 16p claim's realistic?
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And it's a trolley package, comes with the DI.
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get urself a 40/40 m8 look after it & it will look after u ;)
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u will need a ro, u could do it with di only, but i think it would be really expensive
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What's a 40/40?? google says it's a chain of nightclubs!
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You will use up the resin very very quickly and will get sick of changing it.
You will find plenty of info on here regarding Reverse Osmosis - 40/40 as Hitman says is the best size to go for, with a few other bits and pieces. ;D
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http://www.cleantech.co.uk/tdscalc.htm
it will cost you in the region of £170 a month to use a tds of 300 and di only. that is assuming you use 4000litres a month
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It depends on the size of house I guess.
If its a £5 house and you want to do 20 a day to earn £100 thats £3.20 per day £16.00 per week. Then its £800 per year! Thats a lot.
Even if its for a £10 house its a lot. £400 per year.
At 300ppm I would RO.
Suppliers tell you the cost per house because it seems very little but it adds up over time.
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thanks for all the input guys
the calculator thingy says "get an RO" too!
is the wasted water costly though? on a water meter?
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Don't worry about a water meter. I'm on a meter that's why i brought a ionics pro 6. I have an issue with the resin as i don't think it's lasting as long as it should, and that's a ro system. Mate your burn your resin in less than two week's with that TDS reading. you have to go with a RO.
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Don't worry about a water meter. I'm on a meter that's why i brought a ionics pro 6. I have an issue with the resin as i don't think it's lasting as long as it should, and that's a ro system. Mate your burn your resin in less than two week's with that TDS reading. you have to go with a RO.
What are the running costs over a year and over the Pro 6's lifetime, inc purchase?
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I have a pro r-o system in my van to which i can fill my 650lt up in aound 3 hours, my tds reading are around 350. it suits me to have it in all in one place
A mate of mine has one of these buget r-o systems to which he has similar tds reading it takes him aprox 20 hours to fill up he leaves it running day and night to fill a 250ltr tank he never turns it off and he has very cheap running costs but he has to plan ahead
Another freind of mine has a 25ltr di vessel full of purolite he works with his wife with two trolley's 4days per week & it lasts them just over a month they use around 3000ltr's per month before having to replace the resin, this suits them because they live in a 3rd story flat & have no where to store their equipment so to have pure water on demand suits them.
So it depends on your buget and what suits you
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Not really the answer I was hoping for soapsud.
I was looking for figures £'s based on what you spend for the machine and running costs.
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Hi Stuart, i invested around £3000 in my van system and that is what i roughly earn on a good month my running costs are exstreamly low, i supose what i was getting at with the guy who posted the question was it depends how serious he is and how much he has to chuck at it you get what you pay for
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im also on a water meter but my tds is normally 35-40tds.is this ok for DI ONLY? ??? ???
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yes this will be fine
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Thanks for the reply Soapsuds.
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There's hard i.e 180 and hard i.e 450 like here in north Essex so how can one put a per house price on this.
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There's hard i.e 180 and hard i.e 450 like here in north Essex so how can one put a per house price on this.
cause they aint gotta clue... ??? ??? ??? & just wanna sale. sounds good... not! ::)
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Well the maths would go something like:-
500,000/300(TDS) = 1,667 (litres of pure water per 25kg bag).
So roughly speaking, that's £75 to make 1,667 litres.
That is about 22 litres per £1.
If you take 15 litres as being a standard 3 bed semi, that would be about 66p per house.
Even allowing for cheaper resin and a bit lower water usage, it isn't easy to see where the 16p figure comes from.
I suppose if the cost of membranes/prefilters/small amount of post RO resin were factored in and subtracted from the resin only cost it could come down further.
However, to factor in the initial cost of the RO would be wrong IMO as housings and tubing last for years (freeze-ups excepted).
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I do a small amount of window cleaning along with other cleaning. My tap water is around TDS 275 and I use DI only. I keep my costs down by using rainwater with a TDS of 20 for as much as possible. (about 40%)
The DI units are 8l plus 2x 1l
So far I have produced 500l on the same resin.
If work volumes pick up I would get a RO system
Cheers
Mike
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at the mo i manage on di only.
tds is about 230 - 300.
i use around 600 litres a week - tops only tho!
a 25ltr tulsion resin bag a lasting me around 2 months with using a 11ltr vessell.
if use two vessells it will last even longer - but bare in mind i wfp tops only!
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I use a 300gpd RO from pure freedom with a booster pump, makes 200 litres in 5 hours, goes in at 280tds comes out as between 1-5
i bought a 25kg bag of resin 6 months ago and have hardly used any of it,
sod DI only lol waste of money.
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Above certain volumes RO makes sense.
I have been told that the membranes need to have water passed through them frequently or they will dry out and they are expensive to replace. Since I only use wfp occasionally I have stuck to DI.
Cheers
Mike