I have owned the BRS 5-stage RO/DI unit for over six months, and make about 20 gallons of water every two weeks. I noticed that the DI canister has a lot of air trapped in it that doesn't get purged out. Is this OK?
I think like most RO/DI units, the water first enters from the canister top, passes down on the outside chamber, and then comes up the middle chamber where the DI resin is, existing back out from the top. Basically the entire outer chamber is filled with air, and the water trickles down in the slow stream (75 gpd), but there's enough pressure to push the water up through the resin and out.
It doesn't have any noticeable effect on the RO/DI, as I'm measuring 0-1 ppm out (150-200 ppm in), and my capacity has stayed consistent at 75 gpd +/-. What I'm wondering is if stagnant air might accelerate mold growth compared to stagnant water, in those two week intervals between usage. I've got everything tucked tightly under a sink, which is why I don't way to mess with trying to purge the air out if I don't really need to.
I think like most RO/DI units, the water first enters from the canister top, passes down on the outside chamber, and then comes up the middle chamber where the DI resin is, existing back out from the top. Basically the entire outer chamber is filled with air, and the water trickles down in the slow stream (75 gpd), but there's enough pressure to push the water up through the resin and out.
It doesn't have any noticeable effect on the RO/DI, as I'm measuring 0-1 ppm out (150-200 ppm in), and my capacity has stayed consistent at 75 gpd +/-. What I'm wondering is if stagnant air might accelerate mold growth compared to stagnant water, in those two week intervals between usage. I've got everything tucked tightly under a sink, which is why I don't way to mess with trying to purge the air out if I don't really need to.
