I've been using a compact RO system for 2 years now. Change the membrane once a year. I change my filters when ppms hit 20 or more. I make a lot of ro water so 3-6 months for the filters. they are fairly cheap though, I pay around $22 a set. The DI filter last a long time.
My tap water ( and its well water ) killed Canna plants. WEIRD, only Canna....... my tomatoes love my tap water...... go figure!
My tap water ( and its well water ) killed Canna plants. WEIRD, only Canna....... my tomatoes love my tap water...... go figure!
I just setup my compact ro system to check how well it works with my shitty tap water and i must say i am very impressed,from a ppm of 180 down to 8ppm very impressive and if i added the di filter it would be 0ppm.so for £45 i think its a bargain.its just a little 50 gallon/190 litres a day filter system but perfect for me and 2 plants