RO/DI set up

Shilpan

Member
Hello, I have a 400L tank. I am currently setting up my water making station and reservoir.

What size water drums do you think I'll need? And how many?

I'm just totally at a loss as to what size I will need in future and which will be easiest for me to manage water changes etc..

The drums will be stored away from the tank in a separate room.

Thanks
 

lmforbis

Well-Known Member
Something big enough to at the very least hold the water for a typical water change. I have a 125 gallon tank and use a 35 gallon drum. My water changes are typically 25-30 gallons. I also have a 28 gallon container that I keep RODI water in for emergencies. In my opinion you are better off with something bigger than you need so you can do the occasional larger water change.
 

Shilpan

Member
Ah right, I was thinking of getting a large bucket which I can then put on a dolley.

Because I'm also having trouble finding a nicely shaped food grade bucket with wheels (no brute or Rubbermaid where I live, only farmers food grade barrels). Does anyone know is grade 2 plastic is ok? HDPE?
 

2quills

Well-Known Member
For my 120g system I have a couple of 32g food grade (Brute) cans as well. But usually only use one.

Typically I'll just set one next to the tank on a Saturday, fill and mix it then do my water changes on Sunday.

I have a separate fresh water top off tank under the stand that constantly replenishes whatever evaporates.
 

Shilpan

Member
Just an update in case anyone wanted to know, I'm using HDPE (grade 2 plastic). I gave the buckets a vinegar rinse and then an RODI scrub.

1L of water sitting in it for 2 weeks and tds remained at 0-1ppm :)
 
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