rodi units

[Criptix]

i can't make up my mind.I know cheaper is not always better but after researching and weighing the pros and cons I have decided on:Aquatic Life RO Buddie Three Stage Reverse Osmosis
My concern is how many stages are sufficient?Does it have to be expensive to be a good unit?I have also looked at the Coralife 05692 Pure-Flo II 50-Gallon Per Day 4 Stage RO/DI System.What brand do you use?

 

[Massimo]

You should look on bulkreefsupplies website. They have affordable ro/di units! I back up the saying "you get what you pay for". I paid my ro/di unit around $230 at a local reef store.

 

[Criptix]

You should look on bulkreefsupplies website. They have affordable ro/di units! I back up the saying "you get what you pay for". I paid my ro/di unit around $230 at a local reef store.

How many stages does it have?What is the recommended number of stages?

 

[Massimo]

How many stages does it have?What is the recommended number of stages?

It all depends on the Tds of your water source. But usually a 4-5 stage ro/di filter is used. Mine is a 5 stage. I have 160 Tds in my normal water, when it's filtered I have about 1-2 Tds. I'm trying to find the reason it's not reading 0. I think my problem is that my water is running through my filters too fast.

 

[Criptix]

I still need a TDS tester.i know our water is bad but don't know how bad yet.Right now for drinking water we use a Brita filter.i use the filtered water and betta conditioner for my betta and he has done well.

 

[Massimo]

You can get a Tds meter for about $30. Or you can get an inline Tds meter (attached to rodi unit) for about $50. I use a hand held one that costed me $29.99 CAD.

I live in Montreal Quebec so our water is pretty polluted. But we have a pretty good water filtration.

 

[carey]

I bought a cheap tds meter from ebay for like $8. i use a 5 stage bulk reef supply unit myself. Two carbon blocks, sediment filter, di and the membrane. i added a second membrane piggybacked so I can make 150g a day. I have like 9 tanks up so I need ALOT of water. lol

I paid $180 for my deluxe unit, it has dual tds meters so I know when to change my filters, makes it nice and easy. I start with about 130 tds and it goes down to 0.

If you arent getting 0 tds maybe it's time for a new DI cartridge?

 

[Massimo]

I bought a cheap tds meter from ebay for like $8. i use a 5 stage bulk reef supply unit myself. Two carbon blocks, sediment filter, di and the membrane. i added a second membrane piggybacked so I can make 150g a day. I have like 9 tanks up so I need ALOT of water. lol I paid $180 for my deluxe unit, it has dual tds meters so I know when to change my filters, makes it nice and easy. I start with about 130 tds and it goes down to 0. If you arent getting 0 tds maybe it's time for a new DI cartridge?

the di is not even 6 months old yet.. I'll probably change it soon tho.

 

[carey]

Are the other filters 6 months also? For di to run out too soon is an indication that the filters before the di are not doing their jobs. I found that 6 months is the best time to change them all out anyways, I just paid $32 for all the filters and di resin from BRS.

 

[Massimo]

Are the other filters 6 months also? For di to run out too soon is an indication that the filters before the di are not doing their jobs. I found that 6 months is the best time to change them all out anyways, I just paid $32 for all the filters and di resin from BRS.

yeah I'll be buying new filters and di resin around December. The 1-2 Tds isn't having an effect on my tank.