dragonbear

Im thinking about getting an RO/DI system from: http://www.thefilterguys.biz/

Which one should I consider getting? My current tank is a 29 gallon and I plan on getting a 125 or 180 gallon tank in the future.

What are some things I should look out for when shopping for an RO/DI system?

Thanks everyone!

au01st

Check here

http://www.purewaterclub.com/

I got my 150 GPD unit from there for $95 shipped (it was on their eBay store). I can fill my 18 gallon container in just over 3 hours. Basically you're looking for a 0ppm unit, at least 4-5 stage.

fishrule101

That place is very cheap!Do their units work?! I'm in need of one since I'm having moderate algae problems and I'm getting corals VERY soon, so I want the water to be at it's best!

au01st

Yup, they work fine. At least mine is working great. There were a few leaks on some fittings, but nothing re-wrapping fittings in teflon tape won't fix. Also very easy to install if you have a 1/4" drill bit for the drain. I have mine mounted under the kitchen sink. I'm planning to run the tubing behind the dishwashwer and fridge, through the wall behind the tank hooked up to a container for top off water and kalk feed. 2 float switches in the container will hook into a solenoid in front of the RO/DI unit and turn the solenoid off when the container is full (one float switch is for back up).

I just got my float switches today, about $6 each on eBay with free shipping. 2 for the container and 2 for the sump hooked in series so as long as one trips, no overfilling.

dragonbear

thanks for the link! I ended up buying their Zero 0 PPM RO+(2) DI +Tank reverse osmosis Water Filter.

Hopefully it does the trick. Is there anything I should know about them before I get it?

Mike

both of those sites have good prices. Dragonbear, you'll also need a Total Dissolved Solids (TDS) meter to test the output water every once in a while to see when the filters need replacing.

dragonbear

when should the filters be replaced? I've read that anything under 10 ppm is okay. Is there a "magic" number to stay under to keep corals and fish happy?

Thanks!

au01st

Umm, aim for 0ppm. 1-2ppm will be alright, anything over 4 and you will want to replace a filter.

The filters get replaced at different intervals depending on how much you use them. I don't have the numbers off hand, but I should be able to locate them later, I'm just heading out to work.

rado316

im really leaning towards a 4 stage kent marine maxima, any thoughts?

harpua2002

True, and it also depends on what kind of is in your tap water to begin with, LOL.

rado316- I have never used the Kent RO/DI so I can't say anything about it either way, but I have the Coralife 50 GPD and it's just ok. I wouldn't really recommend it for the price. I know there are much better units out there for the money.