lilly747 wrote: ↑Fri Mar 02, 2018 7:44 pm+1 it is a lousy design.....the s9 vpap did not run dry either. I fixed my problem by turning down the HH to 3.NucEng wrote: ↑Fri Mar 02, 2018 7:34 pmHaaaaaaaa. I like the IV bag !!! That would save the cost of a $2 pump. The funny thing is that I’m one of the few that actually does run out of water by early morning. I need maximum humidity for comfort and sometimes I sleep 9 or 10 hours. The damn Dreamstation HH has a small capacity. It’s a lousy design. My old Resmed S9 had a larger capacity HH and I never ran out. I would actually buy a system to auto fill for me if it were reasonably priced. I’m guessing the CPAP manufactures don’t sell them because the water would become unsanitary. If the reservoir held let’s say 1/2 gallon, then it might take a week, maybe more to run dry. By then you may have mold and or bacteria growing in the HH. The HH really should be emptied and dried out daily to prevent contamination.Goofproof wrote: ↑Fri Mar 02, 2018 7:18 pmI think we had a engineer here once, he got the heave ho! That seems like a lot work to go to for someone that can't fill a HH when it goes low. Why not just use your Robot to fill it for you. JimNucEng wrote: ↑Fri Mar 02, 2018 6:51 pmOK. This thread is driving me crazy. LOL. The design is really straightforward and trivial. You put a reservoir of water (any height) next to the humidifier. Run a small hose with an in-line one way check valve and a tiny electric pump ( battery powered if you like) from your reservoir into the bottom of the humidifier. Then you put a tiny float sensor switch on the top of the humidifier. The switch is slaved to the inline pump. When the reservoir water falls below your predetermined threshold, the pump turns on forcing water through the one way check valve and refills your humidifier. When the humidifier is full the float switch shuts off the pump. There. We are done. By the way. I am an engineer.
Put the water in a bag on a IV stand, no need for the pump, only thing to fail is the float valve and hoses. K.I.S.S.!
You cheated, SA people don't have any common sense left! Jim
You could use the IV Bag holder as a hose holder, Two for one.