RODI system help

[guy fawkes]

I got this RODI for free. I looked at there web site to get some info. But don't see this one. I think this is a 3 stage?

Any info would help

 

[guy fawkes]

Aquasafe Canada brand

 

[LostInTheDark]

They all work basically the same. Water in one side through the pre filters and then the reverse osmosis filter. If it has a DI stage that is the resin that removes the final impurities before it goes in the tank. If it hasn't been used in a while you may want to clean it out with bleach and get new filters.
I'm sure if you contact the manufacturer they can help you with specifics.

 

[twilliard]

Those look like standard canisters.
I would look at replacing all filters and ro.
@AZDesertRat

 

[AZDesertRat]

RO only and 4 stages. Probably 1 sediment filter, 2 carbons then the RO membrane. The best way to know what you have is to remove the filters from each.
I have found over the years used systems often are only good for the housings and fittings as almost every time they have been sitting or are otherwise in need of replacement filters, membranes and in the case of a RO/DI a new DI cartridge or resin.

It would be very easy to convert that system into a RO/DI versus just an RO by re-plumbing the second unneeded carbon canister to a full size refillable DI with a couple $$ in parts and maybe 30 minutes time. Cheaper than adding an add on DI and you really do not need two carbons if you use a high quality sediment filter and single carbon block. Other things you will need are an inline pressure gauge and a good $25 handheld TDS meter if you really are serious about water quality and getting the most out of the system. Aquasafe is a pretty low end ebay vendor but they can be made to work with some improvements.

 

[twilliard]

RO only and 4 stages. Probably 1 sediment filter, 2 carbons then the RO membrane. The best way to know what you have is to remove the filters from each.
I have found over the years used systems often are only good for the housings and fittings as almost every time they have been sitting or are otherwise in need of replacement filters, membranes and in the case of a RO/DI a new DI cartridge or resin.

It would be very easy to convert that system into a RO/DI versus just an RO by re-plumbing the second unneeded carbon canister to a full size refillable DI with a couple $$ in parts and maybe 30 minutes time. Cheaper than adding an add on DI and you really do not need two carbons if you use a high quality sediment filter and single carbon block. Other things you will need are an inline pressure gauge and a good $25 handheld TDS meter if you really are serious about water quality and getting the most out of the system. Aquasafe is a pretty low end ebay vendor but they can be made to work with some improvements.

Thank you!!

 

[AZDesertRat]

As an example, assuming the RO membrane needs replacing which is a safe bet and you were to keep it as designed, you are looking at $7 to $13 for a 0.5 micron absolute or 1 micron near absolute sediment filter, $11 for a 1 micron carbon block followed by $13 for a 0.5 micron carbon block, $36 for a good high rejection rate RO membrane and $6 for a matched flow restrictor. Thats $73 to $79 and its still an RO only system. If you were to upgrade it to a RO/DI and add the necessary inline pressure gauge you would be looking at $40 for a 1 micron sediment and carbon block filter and a 20 oz refillable DI cartridge full of fresh reef specific resin or $48 for 0.5 micron sediment and carbon block with the same DI plus the $42 for the new membrane and flow restrictor and another $15 for an inline pressure gauge and maybe $5-$8 for a couple john guest fittings to convert the second carbon canister to a DI canister, thats $102 to $113 and you still have used white opaque housings you can't see through to check your filters.
You can buy a new reef quality RO/DI with the 1 micron filters, high rejection rate 90 GPD membrane, same fresh 20 oz DIand the inline pressure gauge with clear housings for only $124. Once it is time to replace everything including the RO membrane its usually better to get a new system and use the old parts for reactors or something else.

I found all the replacement and new prices here:
http://spectrapure.com/index.php?route=common/home

One of only two or three places I will shop for RO parts.