Am I facing prison time? 
Have had my KS7’s 355 days and never changed the domes (click domes - - they don’t come off easily).
When new, I did wipe nightly with the dry cleaning cloth provided for a couple of weeks. They go in the UV dryer every night.
I plan to continue following this forum from jail.
Haven’t changed mine since May so approx half a year.
I just wipe them with a clean tissue when obviously soiled turning the domes inside out but never unclip the dome.
Also remove the minifit tube from the BTE and thread the plastic cleaning tool through.
They just air dry overnight. On average, they need a weekly wipe.
Regarding bacteria, as mentioned, air drying will remove moisture and inhibit growth.
Secondly, using solvents often damages plastics. I’d use nothing more than a damp microfiber cloth.
Everyone is individual. Some have harder drier wax, other have wax that is wet. Similarly, skin in the ear canal will slough off more or less easily for some.
Common sense as always. Do what works for you.
Ditto - for the exact same reasons.
What are these?! Do tell!
I had cataract surgery, so it’s really only the lenses in my eyes that are plastic. Whatever, they can’t adjust to different distances, so I have special pairs of glasses sprinkled around for seeing at various distances, one pair for the computer, one pair for playing music, one pair at church for playing handbells, etc. For just walking and reading, bifocals are fine. It’s the intermediate distances that are problematic, for example, I have to have a special pair of glasses for trimming my beard. 
FWIW, so-called progressive lenses on eye glasses, which are supposed to take care of this problem, only work with one’s neck cocked in a certain direction. When you have a stiff, arthritic neck, progressive lenses don’t really work.
Now that I think of it, 2012 was epic in another way, but not a good one. I lost my beloved Golden Retriever, Brewster, that year.
I should probably say something HA related so as not to get pitched from the forum. I’m waiting for a call (since October) from my audiologist, who is going to help update my HAs. I’m quite excited about the idea of getting blue-tooth connected with the world.
HAIRY glasses. That’s what you’ve got.
But more important: Condolences for the passing of Brewster. BTW, Goldens are PEOPLE, not dogs. They are just a distant branch off the chimps, having 4 legs instead of two.
You will LOVE the Bluetooth connected world. It’s like for once - WE hear better than others, heh-heh!
I have never replaced my own domes a single time. I was given a small baggie with some when I got my Starkey Halos 3 years ago. Never had one tear or go bad. I clean with alcohol once a week. But wipe nightly before putting them in my DryCaddy overnight.
I have seen the audiologist every 5 or 6 months for cleaning and checkup. They have replaced the domes and wax guards at that time.
Before the Halo’s I had Beltone True 17’s. With those I saw the audiologist much more often. I liked the fit and feel of those domes better. They had a double wall dome. That double wall did trap more ear wax. So I did use alcohol wipes more often. Even so, never had one rip on me or feel like it had degraded.
I just upgraded last week to the Starkey Livio. Looks to use the exact same receiver and domes. So hoping the life expectancy is the same.
Another Costco advantage. Domes and filters are free.
My domes last at least 4 months. I wipe them down (without taking them off the receiver) and the rest of the aids every night with this non-alcohol product: Tech Care Clean Wipes
I change domes once a month as a general rule. I find that they become a bit brittle over time and shrink a small amount which I can sense. I do check them every day and if there is excessive wax on them I try to wipe it away with very gently and avoid jamming the wax in the opening. I would not remove them for cleaning then put them back on. Would rather the cost of new domes than weakening the connection to the receivers and loosing one in my ear.
I leave my audio to change the domes when I see him. I can’t say that I have noticed any detoriation of my domes within a six month period. The only problem I have is the length of time the receivers last. The domes seem to last just fine. But maybe I don’t know what to look for. I will ask my audio on Wednesday when I see him.
Well, after bragging above about getting 6 weeks to 2 months out of a set of domes, I had a pair crap out on me in 2 weeks. One of them tore while I was wiping it down. The previous pair had been replaced because of a tear, but the “defective” dome waited a decent period of time, close to 10 weeks. I hope my audiologist calls to set up the Marvel trial before I run out of my remaining domes. Of course what I have should be last me until summer.
As a newbie learning the ropes, I’d better understand when folks report domes biting the dust if they mentioned (or reminded me!) what they’ve been cleaning them with and whether they remove (or even unfold) the domes from the receivers every day. Don’t mean to make it sound like a critique of lgpiper’s report. Just a request that might help me appreciate dome durability better.
I never cleaned domes. Never had to change a plugged up wax guard. I simply don’t make much wax. But I changed domes and guards once a month anyway as a matter of maintenance.
In reading this thread, I have a vague feeling that different HAs have different kinds of domes. So, one kind will last for ages for some people and others will pretty much need replacement within a month or two. I’ve only ever worn one pair of HAs, so have no experience with anything other than Oticon Agil Pro.
I think I did mention something far above my last post. I have a special cloth my audiologist gave me that I use to wipe the domes and wires down each night. I don’t use any solvents and the like. I wash the cloth out in soap and warm water every once in a while to get the wax off the cloth. The cloth is a little bit like a thin flannel.
When I had my last check up with my audiologist, my domes had been for 2 months and a week, and my audiologist thought they were pretty grubby (they start to look oily or greasy or something, and also discolored) and needed replacement.
OK. Thanks! I stopped being lazy and found your original post on how you clean them. Doesn’t sound like you remove them. Maybe unfold them?
Maybe I can sneak another (somewhat off-topic) dome question into this thread rather than reviving an old thread and notifying all the posters in the old thread:
If one is going to try a power dome vs. an open dome, how does one figure out from the size of the open dome what size of power dome might fit best? For ReSound, the open domes and the power domes don’t seem to be the same diameters. Should imagine the power dome compresses less so that one would probably want to try a slightly smaller size power dome than for an open dome. Was going to try without running to audi for refitting due to venting difference, etc. For tulip domes, I see (at least for ReSound) that one size fits all.
EDIT_UPDATE: In the fitting software, the ReSound open domes and the power domes have the same size designations so I just ordered one set of 7M power domes as I currently use 7M open domes. If the ReSound Surefit Receiver and Dome Guide is done to scale, they do appear to be different sizes with the open domes being slightly larger.
I do not remove them from the receiver. I do try to wipe down the back side of the domes as well. Sometimes, after a month or six weeks, one of the domes will slip off when I’m wiping things down. I just put it back on and it works fine. If the inadvertant slipping off becomes too frequent, I tell myself it’s time to change domes. The time between my changing domes is generally longer in the winter than in the summer.
It has happened that I wanted to do some wiping and my special cloth wasn’t available. But my handkerchief seems to work fine. I use the end into which I have not blown my nose.
I imaging an open dome might not last as long as a closed dome of the same size and material. Less material, so physical strength might fail sooner. The openings make additional tear points. Etc.
My audio says that he recommends I change my domes (power domes) every six months unless there is something obviously wrong. I have not noticed any detoriation with my domes.