Originally Posted by MizTanks
Yahoooo for meeeee!! I got great water goooo Jamie!!! I'll hit up Lowes on Wednesday for the adapter...then it's my very first ro/di water change. Do I need to be looking out for anything in particular? As far as parameters go? My tanks been very much right on and I'm hoping it stays that way.
How will I know how high I should turn my water up too? I mean run it fast, slow or in between? Do I need to be concerned about water sitting in the bowls for any length of time. I'll be making up my water at 5g's every 4-6 weeks and then using fresh for daily top off.
If your water quality has been OK until now you will not notice anything spectacular. What you will get is consistency though with RO/DI, as long as you maintain it as recommended you will get the same high quality every time unlike tap water that changes day to day or hour to hour.
You attach the RO/DI to the cold water and turn the valve or faucet on all the way, the more pressure the better it will work up to about 150 psi which you are not going to have in your home. RO membranes depend on presure not flow or volume, two different things. A 75 GPD
membrane will use about a quart a minute between treated and brine or waste so the flow is minimal, its the wide open unrestricted faucet or valve that provides full pressure.
You will leave the water in the canisters between uses an you need to use the RO/DI unit at least every 10-14 days in order to keep it working properly. You should make a minimum of 3-5 gallons in a continous run each time you use it to keep the membrane flushed. By "fresh" I hope you mean your daily top offs will be with fresh RO/DI whichcan be stored for months on end as long as it is covered or sealed. I use clear 5G drinking water jugs for long term storage for water changes and a covered 23 gallon Rubbermaid recycling can for auto topoff storage. The TDS is always 0 in both no matter how long I store them.
If you really must go more than a couple weeks between uses you need to remove the RO membrane and DI resin and place them in sealed zip loc bags with a little RO/DI water to keep them moist and place them in the back of the refrigerator.
I find that is a pain so I recommend using the RO portion of the RO/DI for drinking, cooking and pet watering so you keep it in use, its stays fresh and the membrane lasts longer.