[d s windowcleaning]

i went to a big market today  and couidnt belive how many products are on sale to challange a wfp system , what next ?
the stall holders give a good sales pitch aswell .

[windolene]

Hi,

?

A bit more please.

Kevin WINDOLENE.

[TonyD]

What products ?
There must be a better solution to the huge amounts of water used, which I'd think will one day see the banning of wfp when the "authorities" twig on to how much is actually used, and wasted too.

[stephen d]

dont worry - just think how much water is wasted in other industries brewing & chemicals to name a couple but necessary to make finished product

[mlscontractcleaner]

Not to mention the amount of water that comes flooding from the ground where I live and runs down the hill like a flippin river all day 'til Southwest Water decide to do something about it

It happens on a regular basis; I don't reckon I use that much water over the course of a year

[concept]

i hate seeing the amount of water waste going down the drain, it's like watching money dissapear!

someone needs to come up with a system that recirculates the waste through the system...

[windowashing]

i hate seeing the amount of water waste going down the drain, it's like watching money dissapear!

someone needs to come up with a system that recirculates the waste through the system...

You can put it through another RO,

But at the end of the day, there has to be some waste water with all of the dissolved solids in it.

You could run the waste through DI resin (like the ionic zero waste system), but that's gets through a LOT of resin, which has chemical wastes to produce/regenerate.

If you're really worried about waste water, why not harvest rain water?

No need for RO if you do it properly.

[TonyD]

Yep, harvesting rainwater is a good plan.  Low TDS and free.

[michael papworth]

Yes. Harvest rainwater. But it hasn't rained enough in Worcestershire for a month!!!

Now I'll need about two days solid rain to wash the roof properly before I can start collecting it again.

Roll on Winter!!!

And surely saving water is very important. There are TWO ways to save water. The first is to minimize waste when producing it. The second is to minimize usage when washing the windows.

To minimize waste, the approach seems to be to use the highest pressure possible using a booster pump if possible. RO units work most efficiently at the highest pressures.

To minimize usage, use a tap or trigger.

1 - Water on - soak
2 - Water off - scrub
Repeat 1 and 2 until dirt, fingerprints, bird poo etc are removed
3 - Water on - rinse

Soaking and scrubbing at the same time certainly works perfectly well, but I think it uses much more water than is really necessary.