Hard water leaves marks after rinse, water filter?

[C350Carl]

You could buy one of these and only use it for the rinse stage. Does about 400L of water before it needs a refill. Refills are £45

http://www.raceglaze.co.uk/race-glaze/400-litre-0ppm-car-washing-filter/

 

[coventryslk]

Use a drill pump attachment for your hose to pump the rain water

 

[BernardB]

You could buy one of these and only use it for the rinse stage. Does about 400L of water before it needs a refill. Refills are £45

http://www.raceglaze.co.uk/race-glaze/400-litre-0ppm-car-washing-filter/

I have one of these and it worked well until it needed a refill. I have now abandoned it as refilling proved impossible. 1 - I couldn't get the top off and had to extract the spent filling beside the pump tube (messy and time-consuming); 2 - the refill filling has to be compressed and packed around the tube, which again I couldn't do without risking damage to the tube.

I've since discovered that rainwater (filtered if possible) does the job just as well if not better.

 

[Scoob]

I think I may just stick with the one I linked to previously. I don't think it's refillable, but for the price I'm happy to just replace it every couple of years.

I'd only ever really worry about doing a "proper" rinse when the weather is good, this time of year a hard water rinse is fine for the most part.

Feeling lazy and full of Christmas lunch at the moment, so not thinking too hard about washing cars

Scoob.

 

[RFdesigner]

I ocasionally have to clean telescope optics.. Now that is SO much more picky than any car cleaning.

You need to rinse with non-tap water.

Filtered rain water will do wonders, as will the waste water from a dehumidifier.

I use dehumidifier water for rinsing my optics..