Search the Community

As some of you might be aware, I am not a big fan of treating water for WC/ Top up. Heard too much negative reviews about RO/ DI systems i.e. troublesome, expensive, etc etc etc. But hey, one has to move ahead with time right? so this time round, am putting my hands wet to give it a try. My expectation of DI-ing water for my WC is pretty clear right from the start, three criteria that I consider getting my DI system: 1) No waste water. (10 litres treated water that comes with 40 litres of waste water is just not appealing to me, at all.) 2) TDS of the treated water has to be less than 10 and NO3 as close to 0ppm as possible. (to see real benefit of WC with a better water) 3) Total cost has to be lesser than $100 with replace cost of less than $50 for 3 – 6 months of usage. (money money money) So after much research online, I have decided on a Crystal Plus 1 Stage DI (selling in LFS, one of the cheapest, if not the cheapest DI available locally) and if it cannot bring TDS down to 0 then I will further filter the water with an Aquafoss DI resin (Design for reef use. Not avail locally. price about one blue tang). Crystal plus 1 stage Aquafoss DI How actual item looks like This is how the setup looks like: Tap water -> Crystal plus -> DI Aquafoss -> Treated water (Filter up to 400l per day.) Results: (I am actually pleasantly surprise that the result matches my calculation and expectation) TDS for tap input: 71 TDS after Crystal Plus 1 Stage: 39 Final TDS after Aquafoss: 0 Final NO3 after Aquafoss: 0 So here it is, my semi DIY DI filter system which cost me less than $90, with no waste water and zero TDS + NO3. Conclusion: I will surely recommend this setup to any bro/ sis who is budget conscience and dread the idea of staring at 40l of waste water for 10l of treated water...