USA Reef 6 st 100GPD Reverse Osmosis RO+DI Water Filter

6stokes

Member
Most all systems have the dame components and are made ultimately by the same manufacturer, so go with the best price. Be sure to understand what you're getting though. The reef system doesn't have a storage tank, so it will take a while to collect water for you. If you don't plan on using the water for anything else, then this is okay. If you want to use the water for cooking or making juice or drinking, then I would suggest the model with a tank. There's about two and a half gallons of stand-by in the tank.
 

golfish

Active Member
The 100 gpd unit is labeled a drinking water unit. Its rated at reducing TDS 90% where the lower membranes reduce up to 98%...
The problem with this unit is that it will waste your DI cartrige really fast.
 

jon.316

Member
I've been using this system, the one with the 3 gallon storage tank included, for a bit over a year now and it's worked great. My tank looks cleaner, my fish healthier, and my drinking water tastes better. Just remember to changed your filter every 6 months or so even tho it says it can go for a year. And buy the dang wrench too cause there's no way u can change the filter without it unless u have a really big wrench.. The only problem i have with it is that there's not enough pressure in the tank when im tryin to fill up my fish tank with water, so if i let ma fish drink...i cant basically. Also, my auto shut off valve malfunctioned and i had to purchase a new one...But for the price this is basically unbeatable. I dont see why every just dont buy this unit or one like this....If anything your gonna be healthier cause u wont mind drinkin water so much.
steve...IF your planning to drink, you would just drink 5 stages, the 4 filters and the reverse osmisis, there should be a seperate valve that goes up to your sink, for your fish tank, you would use the whole 6 stages including the de ionizer.
I'd say spend an extra 30 bucks and get the whole big package, its still much cheaper than else where...
hope this help u guyz...
 

steveoutla

Member
I've heard a lot of talk about how the RO/DI units will produce 1 cup of 'good' or filtered water for 1 cup of 'bad' or unfiltered water. I guess my question is, is all the water that comes out of this suitable for the fish tank or does some of it get routed somewhere else? This unit would only be for my fish tank.
 

donahue

Member
im not sure where the waste water gets routed, i would assume down your drain like the rest of the water coming out of your faucet. also, would i need to get the reserve tank if i plan on buying a float and putting it in my sump and having the ro unit automatically top off into my sump?
 

jon.316

Member
I'm not sure what people mean when they say bad water or good water....As far as i know...all water that comes out of the filter is good up to a certain amount of gallons per day...As long as the water is not forced thru all the filters too quickly, every drop that comes out should be "good" water. So if the filter is set for 100gpd, i'd imagine the fiirst 100 galls per day is 99% clean where anything after that would be less clean but by no means "bad"...maybe 90-95% clean but still at least 5x better than just regular tap water.
And no if this is just for your fish tank you dont need the pressurized tank. You'd have to retrofit your float of course and set your GPD at a very slow trickle so to not flood your living room but that should be simple enough...
the ro/di unit does come with a saddle valve and drain so it will automatically drain once it reaches a max GPD i believe....but ask DVONEb to see.
 

golfish

Active Member
Generally, it takes 5 gals of tap water to get one gal of RO water. Your 100 gpd units will probably do a little better because of the lower rejection rate...
 

donahue

Member
awesome. so if it takes 5 gallons to make 1 clean gallon, where do the extra 4 gallons go?that is the question, haha
 

6stokes

Member
It comes with a saddle that you attach to a drain pipe, but you can direct it any place you like if you want to save the water for other purposes.
 

spe934

New Member
How long does it take to get, let's say 10gal, of usuable water? reasoning would suggest if you get 100gpd, then 10gal would take 2.4 hrs, right? Do you just turn on the tap and wait until you have filled to the desired level and then turn it back off?
 

spe934

New Member
How ever you get the unit to work, is my reasoning correct on about the time it takes to make DI water?
 

6stokes

Member
Your reasoning is correct. What I do is turn it on to fill a five gallon container, It usually fills about half way because of the 3 gallon storage container in about 5 minutes or less. Then I turn it off and wait about 30 minutes to an hour and turn it back on to fill the rest of the way in just a few more minutes.
 
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