RO Gurus?

[mark78]

My plan is to hard plumb my RO/DI unit so I always have water on hand for changes and top offs. My tanks go through about 20 gallons of water a week in evaportion.

I was also planning to upgrade my spectrapure with a 75gpd membrane...

With it hard plumbed, would it be better to stick with the 36gpd and have it run more frequently, or a 75 and have it shut off more often?

I seem to remember hearing the more it runs the better it is on the membrane...

 

[Len]

Mark, it is better to have a smaller unit running 24 hours a day versus a larger unit that is shut off. RO membranes are optimized for constant positive pressure. Most mfg suggest 12 hours per day is ideal for their units, so rate accordingly.

 

[mark78]

Thanks thats what I thought. I hate having to pull it out and hook it to the kitchen sink any time I need water, it results in less water changes and tap water for evaporation =/

 

[Unresistible Blue]

MArk - did you get your RO system squared away?

 

[mark78]

Not yet, but mostly for my own lazieness. I need to order a plastic vat for water storage, then get the RO unit all plumbed up with the float valves and Kent water shutoff piece. WIll be a few weeks most likely.