What does the DI Bypass really do?

[lfs_150g]

I know that the Typhoon III system has a DI bypass, which allows me to waste the initial water when I start the unit up. Other then that...is there any other advantage? I plan to use this system once a month or so...and then disconnect it until next time. Would I need that DI bypass every time I hook it up since it has been sitting...or is it really only useful when you have new DI material?

 

[scsinet]

From an aquarium water perspective, the DI cartridge should always be used to make water, so there's no point in spending extra money on the bypass because you can easily just unscrew the canister and replace it without the cartridge for your first few gallons, or simply undo the hose and just come right off the membrane. Either way works, takes 7 seconds, and doesn't cost anything.

 

[moneyman]

My household uses RO and my tank uses RODI. The RO water bypass the DI unit.

 

[ghettotang]

From what I read and understand is the purpose of DI bypass is to catch and sediment left such as nitrate and phospate. In addition, it help to catch and other waste from 1st to 3rd stage of the filter and it give a clean filter water when it comes out.

 

[ghettotang]

From what I read and understand is the purpose of DI bypass is to catch any sediment left such as nitrate and phospate. In addition, it help to catch and other waste from 1st to 3rd stage of the filter and it give a clean filter water when it comes out.

 

[dogstar]

The bypass is so you can get water that has been filtered from the prefilters and RO, but not yet gone thru the DI filter....This is because most ppl. consider DI filtered water a hazard for humans to drink. So if you also want to use the filter for drinking water for yourself then use the bypass, if not then you dont need it...
'' only once a month '' ?? what about top offs ?? should need it for those much more often .
I'm only guessing, but if you plan to fill up a large container once a month and take water from there as needed, then consider that RO/DI water is very pure and over time will/might absorb minerals/chemicals from the container walls and possibly make the water toxic....

 

[scsinet]

I'd say it depends on the container he uses. If you get a food grade barrel, etc, then the water should be able to be stored indefinitely without risk.
But I'd agree he's seriously underestimating how often he's gonna need it.
I have a 55 gallon holding tank and I go through at least that much every week. When you consider that given his username we're probably talking about a 150 gallon system... :scared: