#1 Science Forum For Lab Technicians

Hello All
What kind of water purifier do most of you have? We have a reverse osmosis system and when I came it had not been serviced (cartridges changed). It will cost over $600 to have serviced - consumables and travel. My previous schools have had a distilled system - water is heated/boiled in a stainless steel container and condensate is cooled and collected. This system is $530 and although a little slow, seems to work well but uses a lot of cooling water - complaints from teachers who want to try and collect the cooling water and put it on the garden.
thank you for your thoughts
Adrianna

Parts of NSW can not have a distilled system, due to the fact it uses too much water, and the water board put a ban on that. We buy our distilled water and have done since the ban arrived. Perhaps you need to check with your local council, that you can still distill your water.

we have reverse osmosis costed $395 and fits under the sink. costs hardly anything to use. we bought it earlier this year.

We used to by our water in - cost $20 for 20 litres and delivered to the door.
We now have purchased a Deminiser which cost less than $100 .. if you want details PM me.

I used to distill using the old condensing system. We are rarely short of water here, but I used to feel so guilty flushing all that water down the sink for a very small yield of distilled water. (and yes, through the dry times I used to bucket as much as I could onto the trees outside) We now have a Vertex filter fitted to a tap in the prep room. It is not reverse osmosis but have had no complaints. Our water is pretty good straight from the tap and close to pH7 even before filtering, so probably not necessary to even filter it, but I do. It is instant and there is no waste.

Does it remove the chlorides ie can you make up clear silver nitrate?

Looks clear to me

clear in mine as well.

J could you post a picture of what the vertex set up looks like please

I got mine from Clean & Clear alt a cost of $1100.00
It is great and I have had no probblems with any nitrates

Elgastat deioniser $890 from SSc. No waste water. Replacement cartridges for $49 about every 18months. I have had no problems with it. Good water quality.

Have tried a couple times to attach a photo. Hope it works this time.
J