RO Water Storage - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > DIY Projects > RO Water Storage

Reply
 
Thread Tools
Old 07-15-2010, 09:44 PM   #1
Mylo
Recipes 
 
Sep 2008
Posts: 22
Liked 1 Times on 1 Posts



Does anybody know of any practical purpose of the specialized RO reservoirs that come with the "under the cabinet" systems (2 gallon?). I know then have a pressurized bladder in them - is that just to push the water back up and out the faucet? The large ones are expen$ive!

Long story short... I'm getting tired of only collecting 2 gallons at a time. I have to plan well ahead for my brewday. I want to build a collection tank with a float switch on it that will fill a larger holding tank. If I have to, I'll put it up on the wall above my HLT with a nice, large spigot on it.

I don't think I need anything bigger than 10 gallons. Anybody have any links to food grade plastic tanks that I can use about this size? Anybody see any issues with this?

Thanks.


Mylo

 
Reply With Quote
Old 07-15-2010, 09:51 PM   #2
lincoln
HBT_LIFETIMESUPPORTER.png
 
lincoln's Avatar
Recipes 
 
Dec 2009
san jose, ca
Posts: 205
Liked 4 Times on 4 Posts


the air bladder tank lets you store the water under pressure so the pump don't burn out and that water comes out when you pull on the faucet. (wow i am quite articulate today)

if you are fine with gravity feed into your hlt you should have no problem taking a tap of the bladder tank with a solenoid and feed a tube/pipe to the storage tank.

I would put the solenoid valve closest to your ro system. you could also use a ball valve if you have an over flow on you tank. (now thinking about it an over flow is not a bad idea ether way)

i was thinking about doing something similar for my brew hut.
try us plastics for a tank

 
Reply With Quote
Old 07-15-2010, 10:50 PM   #3
Mylo
Recipes 
 
Sep 2008
Posts: 22
Liked 1 Times on 1 Posts


A buddy of mine just brought up a good point... Storing all that water could get funky with algae, etc... Now that I think about it - that's probably the other reason for the bladder - no air ever goes into the tank. Maybe I could use one of those sterile filters that B3 sells to filter the air that goes in, to prevent mold and algae spores from getting in there. It's all pre-boil - so I guess I'm not that concerned with anything else - especially if it doesn't affect the water's flavor.

Probably best practice for a "homegrown" storage system like this is to leave it dry... I wouldn't mind flipping it on a few days ahead of time - as long as it shuts off automatically when it gets to 20Gs.

What do you all think?


Mylo

 
Reply With Quote
Old 07-15-2010, 10:56 PM   #4
lincoln
HBT_LIFETIMESUPPORTER.png
 
lincoln's Avatar
Recipes 
 
Dec 2009
san jose, ca
Posts: 205
Liked 4 Times on 4 Posts


Use a black tank, algae needs light.

edit:
sorry phone started to ring; anyway

leaving it dry is fine, i like the idea of having a valve shut off after 20g. I would make all the connections tubing so that you can flip it up side down because you will never be able to drain the last bit out. (unless you use a cone of course)

probably do something like this (could be simplifyed now that i look at it) :



 
Reply With Quote
Old 07-16-2010, 01:28 AM   #5
P-Lay
 
P-Lay's Avatar
Recipes 
 
Mar 2009
Deltona, FL
Posts: 148

Another option rather than RO water storage would be to put another RO membrane in parallel with your existing membrane. This would double your RO output and cut your filling time in half. You could put quite a few membranes in parallel. This could get pricey initially, but would extend the life of each one since they would be only filtering a fraction of the water coming through.

If you want to go the storage tank route; one idea would be to use a keg. They're readily available and somewhat inexpensive. You could mount your float valve/switch in it to control your water level. You could also hook up a CO2 tank to purge the air and keep it under a very low pressure to keep O2 out, just like a kegerator. Might even be able to use the CO2 to push the water to your tun. I might be over-thinking this a bit.

BTW, is this your setup? I have it saved in my bookmarks to steal ideas from later.

EDIT: Here's an example of a second membrane upgrade.
http://www.bulkreefsupply.com/store/...rade-kit.html#

EDIT EDIT: You'd want to bypass your undersink storage tank to do this too.
__________________
Cheers!
P

Quote:
Originally Posted by bad coffee View Post
Why kill when you can OVERKILL!
Quote:
Originally Posted by TheManes View Post
Have you considered drinking more?


 
Reply With Quote
Old 07-16-2010, 02:12 AM   #6
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
 
Bobby_M's Avatar
Recipes 
 
Aug 2006
Whitehouse Station, NJ
Posts: 23,205
Liked 1660 Times on 1073 Posts


I'd install a kent float valve into the top of the sidewall of a 15 gallon open head barrel. Put a manual ball valve on before that so you can only open it the day before you want to brew. That way the water only sits around for a day.
__________________
Welcome to BrewHardware.com. I love you.
BIAB Large Mesh False Bottoms and SS HERMS COILS are IN!!
Chugger Pumps, Pump Kits, Camlocks, Sightglasses, Clear USA made Silicone Tubing, RIMS, Electric Install Parts, etc.

 
Reply With Quote
Old 07-16-2010, 03:33 AM   #7
SweetSounds
 
SweetSounds's Avatar
Recipes 
 
Jan 2010
Des Moines, Iowa
Posts: 1,425
Liked 20 Times on 19 Posts


Quote:
Originally Posted by Mylo View Post
Does anybody know of any practical purpose of the specialized RO reservoirs that come with the "under the cabinet" systems (2 gallon?). I know then have a pressurized bladder in them - is that just to push the water back up and out the faucet? The large ones are expen$ive!

Long story short... I'm getting tired of only collecting 2 gallons at a time. I have to plan well ahead for my brewday. I want to build a collection tank with a float switch on it that will fill a larger holding tank. If I have to, I'll put it up on the wall above my HLT with a nice, large spigot on it.

I don't think I need anything bigger than 10 gallons. Anybody have any links to food grade plastic tanks that I can use about this size? Anybody see any issues with this?

Thanks.


Mylo
Nothing specialized about them, but these have been on CL for 2 months at $6.00 each
Current posting doesn't mention pedigree, but IIRC they came from beer-worthy past lives....

 
Reply With Quote
Old 07-16-2010, 11:53 AM   #8
rabeb25
Recipes 
 
Jan 2009
Albertville MN
Posts: 509
Liked 67 Times on 46 Posts


I just use empty culligan bottles.. apparently thats far too simpleton.

 
Reply With Quote
Old 07-16-2010, 12:11 PM   #9
beerthirty
big beers turn my gears
HBT_LIFETIMESUPPORTER.png
 
beerthirty's Avatar
Recipes 
 
May 2008
Podunk, VA. Not far from the NC line.
Posts: 2,589
Liked 32 Times on 14 Posts


Talk to your LHBS about getting one of their empty extract barrels. You could probably get one free.
__________________
Quote:
Originally Posted by the_bird View Post
"I've got a fever... and the only prescription is, MORE CARBOYS!"
primary- Tangerine Dream, SWMBO slayer,
serving- amber ale hop experiment #6, Roggenbier, apfelwine
planning- Cru?
conditioning- 9/9/09 barleywine
Drink water?... Never, fish fornicate in it.--- W.C. Fields
Most problems can be solved with the proper application of force.

 
Reply With Quote
Old 07-16-2010, 12:21 PM   #10
WPStrassburg
Recipes 
 
Sep 2008
Rochester, NY
Posts: 584
Liked 37 Times on 32 Posts


Get a gray Brute container from Lowes/HD and use that for a resevoir to fill the day before. Like Bobby said you can add a float valve to shutoff the flow and I'd pair that with an auto shutoff. The floats can still let water by if you have high enough incoming pressure, but the autoshutoff cuts your incoming water to the ro off when it senses backpressure being caused by the float.

Don't worry about algae/funk too much so long as you cover the vessel. RO is stripped of essentially everything and isn't too condusive to growth. My RO/DI and saltwater drums are always full in my basement and they might get cleaned once a year.




page 11 shows the setup installed.

http://www.spectrapure.com/manuals/P...K_SPFK_FLC.pdf

 
Reply With Quote


Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Storage of yeast under CO2 Jim Karr DIY Projects 9 07-25-2009 11:01 AM
Yeast storage ferrarimobile DIY Projects 7 12-08-2008 09:41 PM
Insulated storage? ron1guz Fermenters 5 05-06-2008 05:39 PM
Cold storage box.. sweet! waskelton4 Kegerators & Keezers 16 05-01-2007 11:44 AM


Forum Jump