So I have this RO
unit I bought online (I use it for saltwater) and I have had it for 18 months. I realise that I (aparently) should change some of the filters every 6 months? I have not changed any so far.
I have worked out, however, that it would actually cost MORE to buyt all the filters which supposedly need replacing, than to buy a new unit altogether!
Here is the link to the website I bought it off, and where the sell the filters: Spare Parts & Accessories - Swallow Aquatics
The unit I have is an 'Aquaworld Compact RO
Unit', and the top 5 products on the page I have linked are the supposed replacement filters, and a membrane.
I am mainly looking for someone with experience, who can tell me how often they change it or which ones NEED changing.