Hi Spruce,, i have Renault Traffic, my work would be kinds local, im just wondering about these to set up, r/o from tap straight in tank in van when fill im on the rd, or the system with Xline u have every thing and if run low i can use clients water to fill, mu question is do i spent the extra 800 quid to have every thing build in the tank. if you know what im getting at .. or have r/o from tap fill into van . or have tank in garage when fill pump into van.. big margin in price with the 2 systems from Xline,
Our tap water fluctuates between 99 and 125ppm. We use an r/o to reduce that down to 2ppm and a 7 liter di vessel to polish the remaining 2ppm. A 7 liter di vessel lasts us (2 cleaners) a year. We use about 13000 liters of pure a month. We use a 4040 r/o and process water into an IBC tank. All in all we use about 78,000 liters every 3 months (including waste water.)
We aren't on a water meter.
If we were on a meter then we would have to account for the 13,000 liters and the resin needed to purify that.
Window Cleaning Warehouse have a resin calculator on their website.
http://www.windowcleaningwarehouse.co.uk/resin-calculator.htmlAccording to that we would use a bag of resin a month using 350 liters a day for 5 days a week. However, if I use my resin usage in their calculator it under reads in my case.
Then I would have to consider the hassle of changing resin and having to continually (everyday) monitor the tds of the water output to ensure that the water is always pure.
I personally believe you need to supply your own water needs. In the early days most customer said we could use their outside tap for water, but most have no supply to them in the winter.
I would go with a 500 liter tank personally. It wouldn't cost much more than a 350 liter tank, your Trafic will carry it with ease and you should always have enough water for each days work.
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