question about ro top off

[1sttimer]

My ro system has an alkaline filter which adds back calcium potassium and so on. Is good for top off?

[anthonys51]

you need to top off with an rodi water, a unit specifically made for saltwater tanksis best. the ro units make for drinking water, believe it or not wont take out everything , making the not good enough to be safe for saltwater reef tank
yes my fish drink better water than me

[1sttimer]

Mine is a 7 stage system.

[anthonys51]

does it have an di unit on it.
those alkaline filters isnt suitable for reef tanks

[1sttimer]

Oh...I guess I'll be buying distilled water for top off!

[anthonys51]

can you buy pass the alk part of it, does it have a deionized membrane on the unit

[1sttimer]

It's in my kitchen and I use it to drink and cook.
It does have a membrane not sure it's the one you're talking about.

[anthonys51]

http://www.thefilterguys.biz/ if you want ask this guy, i bought my rodi unit off of him, he was very helpful and we even talked on the phone for 45 mins. if there is a part or something you can add he would know

[1sttimer]

This is what I have
iSpring RCC7AK - Built in USA, WQA Certified Reverse Osmosis 6 Stages 75GPD Under Sink Water Filter w/ Alkaline stage, Clear Housing, Designer Faucet https://www.amazon.ca/dp/B005LJ8EXU/ref=cm_sw_r_cp_apa_i6Dmyb7AES7GS

[mcgyvr]

If you want to make true RO/DI water with your system then you can "T" off after the 4th stage on your unit and run it through a separate DI stage for "0 TDS" water..
This is all you need to purchase..
http://www.bulkreefsupply.com/single-deionization-canister.html
and this
http://www.bulkreefsupply.com/mur-lok-ro-tube-divider-1-4-x-1-4-x-1-4-push-connect.html

The current system you have is really intended to produce "drinking water" for human consumption.. Its not "ideal" for a reef tank..

[anthonys51]

if you want to make true ro/di water with your system then you can "t" off after the 4th stage on your unit and run it through a separate di stage for "0 tds" water..
This is all you need to purchase..
http://www.bulkreefsupply.com/single-deionization-canister.html
and this
http://www.bulkreefsupply.com/mur-lok-ro-tube-divider-1-4-x-1-4-x-1-4-push-connect.html

the current system you have is really intended to produce "drinking water" for human consumption.. Its not "ideal" for a reef tank..

+1

[1sttimer]

Yup that's an option.