The water bottle for the windscreen wash on my car continually fills up with slime, algy and other residues - does anyone know what's causing this? - I have tried various additives that claim to be antifreeze, non smear etc, but all seem to turn into solvite within a week or two....my reason for adding them was not for their claims, but to try and kill off the organisms which obvioulsy love the conditions in there. The water bottle holds 5 litres of water, I've tried just putting in one litre and refilling when nessecary, in case it was the length of time in the bottle that was the culprit, all to no avail. It might sound like a trivial problem, but when this crap works loose and comes down the tubes, it blocks all the jets. Today I took the bottle off and it is now in a bucket containing bleach, caustic soda and hot water, I've had to do this every year since I've had the car, what's causing it and how can it be stopped?
TIA
X-posted to uk.d-i-y and uk.rec.cars.maintenance