[poole bay]

hi can you help i want to get  the water fed poles system the only way i can do it is with the di bottles,to make the water as i have no room to hold a tank with ro system.
right  how long will the resin last in the bottles as i will only use this on a couple ov jobs in the month at the most 20 houses as i do it the trd way but this system will come in handy thanks if you can help   ps dont no why the vote thing came up sorry !!!

[Andy@w.c.s]

Carl
if you are going down the DI route  you will need to know the ppm reading of your water
the higher the reading the sooner you will have to change your resin
as this is the only thing that is cleaning it ( making it pure ) by the sounds you won't be using that much so may be a few months???

[Paul Coleman]

hi can you help i want to get  the water fed poles system the only way i can do it is with the di bottles,to make the water as i have no room to hold a tank with ro system.
right  how long will the resin last in the bottles as i will only use this on a couple ov jobs in the month at the most 20 houses as i do it the trd way but this system will come in handy thanks if you can help   ps dont no why the vote thing came up sorry !!!

You can calculate it yourself.  Others on here have calculated it as 500,000/TDS = no. of litres of water you would get from a 25 kilo bag.  Don't treat that too literally as it can vary.

[WavieDavie]

Play about with this . . .

http://www.cleantech.co.uk/tdscalc.htm

Works for DI only and RO + DI

[poole bay]

im lost still cant work it in me head will it come to me

[WavieDavie]

Plan A

You'll need a TDS meter to take the reading from your tap.

In the top box, enter your TDS reading.
In the next box down, put in how many litres you'll use per month - work on 2 litres per minute for first cleans but half that for next cleans.
If you're not on a meter, put a zero in the third box - or the price if you are.

Click the tab button on your keyboard to see the figures below change. The top line will say how many litres of DI water you'll get from a 25ltr bag of resin. Divide this by your monthly usage to see how long it'll last.

Plan B

Talk to another window cleaner and ask if he'll sell you some 25ltr cannisters of DI water every month

The Resin seems to last forever if it's permanently wet inside the DI vessel, if thats the simple answer you were after.

Mumble grumble, mountains, molehills . . .

[poole bay]

thanks mate got it no cheers