Juz gotton hold of a 2nd hand unit of the Sewatec 3 stage RO unit.(Okay to dispel any guessing game , I got this unit from SRC side at $50) value for money.
No photo yet , but can find the info at
http://www.sewatec.de/Sewatec_Produc...e21f211ba117bd
Will take a photo of it installed in my bathroom a few days later.
Test run today , managed to get 2 litres of RO treated water by wasting 5 litres of water.
. The 2 litre is meant for a top up use and kalkwasser mix. so juz nice for me. the wastage would be used for watering plants , and laundry washing.