RO/DI system

[merlin33bc]

i need a good rodi system that i can hook up to an outdoor faucet when i need to do water changes.

i basically have no clue what im really looking at.

so if anyone could reccomend a good system for a good price it would be much appreciated.

thanks

robert:strooper:

 

[coolfish5]

Bulk Reef Supply has a nice 75 gpd RO/DI with TDI meter for $159.99 Looks like $11.19 shipping to christiansburg anyways.
I have been happy with their filters that I purchased for the store, and great prices.
http://www.bulkreefsupply.com/p366/Standard-75GDP-RO/DI-5-Stage-System/product_info.html
John

 

[ServantSoldier]

i don't like the bulkreef membranes. favorite would be spectrapure.. also pleased with air,water,ice and thefilterguys.. but same membrane as the bulkreef.

 

[coolfish5]

What problems have you had with bulk reef? I just ordered and installed a dow 75gpd membrane, and flow restricter and some prefilters and DI resin. Granted I've only been using them for a couple weeks.
I have heard specrapure has a good reputation as well.

 

[ServantSoldier]

inconsistent tds out of the membrane. the di exhausts quicker compared to what was used previously.. I don't recall what the previous membrane was though. :-/

 

[ServantSoldier]

btw, this is commercial use and high tds tap.. stages: 1m sed, 5m carbon, 1m carbon, RO, DI

 

[Buckeye Hydro]

By commercial use do you mean high volume? How much?

Russ

 

[ServantSoldier]

standard ro membrane, just producing 300g of di water weekly.

 

[Buckeye Hydro]

That volume shouldn't be too much for a quality system to handle, although you'll need to change your prefilters and DI resin often. Inconsistent tds out of the membrane may reflect inconsistent pressure delivered to the membrane, or a system configured in such a way that tds creep plays too much of a roll.

Even if you use a very high end carbon block like the Chlorine Guzzler (with a 20,000 gallon capacity), and assume that you only run it to 75% of that capacity, you'd need to change it every 8 weeks or so.

You could configure your DI system to extend the time between refills, or just change the cartridges frequently.

Russ

 

[merlin33bc]

thanks for the information

i think bulkreefsupply is gonna be my best option