New Grower Reverse Osmosis worth the cost?

[riz la green]

You are slightly less in most values and slightly higher in PH than my area and my waters fine. Drinkable out the tap and the plants love it.

 

[Dirty Auto]

Thanks for everyone's interest on the topic, just thought i would update to say i decided to NOT get an osmosis filter
I took chester's advice and bought some for 17p/2litres at the store :thumbs:
now to see if it really makes the difference...