thanks barney , i do not really need a very big tank and it does not have to be stainless ,i made an effort on lazada again ,wait and see if they will send or not , the tank on the picture is 19L and of good quality (lazada china), the 50L rectangular tank would fit exactly on my small table ,not everything coming from china is rubbish ,the Chinese get more clever too and realize they can not keep making only low quality goods, anyway they sell junk in any country not only China...and i am only playing with the system , i have assembled all myself using a filter i had , and adding all to make it a reverse osmosis system without a pressure tank , as reverse osmosis is making also a lot of waste water i did not want to see wasted i did this ...
i collect the waste water in this barrel connected with a small pump used to water the plants ...
so no waste ...my produced ro water has a tds of 5ppm ,what is a good result ...
i never drink water anyway , in water form ,a lot tea though ....
when the 50L tank arrives i will also put a small aquarium air pump with air stone to keep the water in the tank moving so it stays clean ....like i said only playing around ...
