RO...RO/DI choices

[Samw]

Any update from the GVRD?

A few weeks ago, my RO filter was plugged up and I didn't want to wait to get a new carbon block so I thought I would do a small water change with tap water. I thought it might be OK because I've used tap water for top-offs before. Well, this time after the water change, I lost 2 acro frags and my frogspawn bleached and everything in the tank looked unhappy. The tank turned cloudy and I got a lot of brown algae. I smelled the tap water and there was a chemical odour of some sort. I'm guessing that the chlorine was what killed off the algae/zooxanthella in my tank. The good news is that 2 weeks later, my tank is almost back to normal (except 2 of my acros is now brown).

By the way, where's the cheapest source for membrane replacements? Does Aquasafe sell just the membrane? I haven't found any EBAY auctions on membranes. They just have prefilters. Can I put a 100 GPD membrane in my 60 GPD unit?