General > General Technical Chat
Ot: Dishwashers
thm_w:
--- Quote from: tom66 on December 27, 2020, 11:28:34 pm ---Contrary to Alec's (Technology Connections) comments on Bosch dishwashers, the system is far superior to American dishwashers, in my opinion!
Bosch machines use a filter to catch big waste, which means the biggest waste can be siphoned off and cleaned every 30 or so uses (~3 months) into the general waste. This big waste is not macerated and recirculated within the machine, which clogs pipes and adds dirt to dishes being rinsed. You should remove big waste from dishes before loading them; I think this is true of all dishwashers. And while pre-rinsing is a waste of time (why people still do this baffles me), you should make some effort to take the largest waste off the plates as the machines are not designed to remove these effectively.
--- End quote ---
He didn't give the impression to me that one system is clearly superior. But anyway I agree, filter system is better. The issue is consumers don't want to perform basic maintenance. So the filter will fully clog after ~12 months and then customer will complain to the manufacturer that their dishwasher stopped working. Instead of with the macerator that clog or self destruct after ~3 years at which point, customer will buy a new dishwasher or pay someone to come clean it out, less calls to the manufacturer.
--- Quote from: tooki on December 28, 2020, 11:13:23 am ---Nowhere outside of USA has significant use of garbage disposals. We may see this change due to the biogas aspect.
--- End quote ---
Can't see it changing, too many issues with fats clogging up sewer pipes: https://en.wikipedia.org/wiki/Fatberg
An eco friendly city would have a food/organic waste pickup stream: https://environmentvictoria.org.au/resource/organic-waste/
tom66:
Our garden waste is collected every 2 weeks here, even in winter, as you are supposed to put your food waste into the garden waste bin. It's then made into compost which is used for local farms and occasionally sold in DIY shops nearby. Seems like a good idea to me.
james_s:
--- Quote from: tooki on December 28, 2020, 11:13:23 am ---Well one reason is that garbage disposals are insanity to begin with. It makes no sense to burden the sewage system with food scraps it was never intended to handle. It’s not that it can’t handle them at all, but it wasn’t designed for it. However, new wastewater treatment plants designed to produce and capture biogas actually benefit from garbage disposals, so the situation may change in the long run.
Nowhere outside of USA has significant use of garbage disposals. We may see this change due to the biogas aspect.
--- End quote ---
Maybe it's just a cultural thing? Everyone has a garbage disposal here, even apartments. Occasionally you see a house built in the 1950s or earlier that doesn't but it's pretty rare, the Insinkerator is as ubiquitous as the microwave oven, common enough that the brand name has become a colloquial term like Kleenex or Hoover to describe similar units made by other companies. The house I grew up in had a septic tank so my dad always discouraged using the disposal for anything other than crumbs but I've never heard anyone suggest there was any issue with them in homes that are on a sewer connection. I suppose it could be an issue if you produced a tremendous amount of food waste but for the occasional off-cuts, scraps and crumbs I don't see it being an issue. I have a compost pile out in the corner of my yard where I dump grass clippings and stuff I prune off the trees so occasionally if something like a whole fruit or vegetable goes bad I'll toss it in that pile but I can't be bothered to trek outside for small scraps so into the disposal it goes. My mom used to keep a compost bucket in the kitchen sink, still does in fact and I've always hated it. Even with a lid on it attracts fruit flies and if you open the thing to put something in it stinks up the whole kitchen, blech. Probably would be ok if it was emptied daily but that didn't happen.
We can get yard/food waste service here too but it costs a significant amount extra on top of garbage pickup, at least our recycling is free. There's a ravine at the edge of my back yard so for me it has always worked to have the compost pile back there, it helps compensate for the erosion that takes place.
james_s:
--- Quote from: tom66 on December 29, 2020, 10:09:21 pm ---A colleague of mine has a washing machine from Bosch with six cotton presets: the standard 30C, 40C, 60C, and 90C ones, then two ones with the 'eco tag' symbol next to them, 40C and 60C.
The 'eco tag' ones are the ones compliant with the EU standard and the machine will achieve its greatest efficiency in those modes, but one wonders how many customers really know the difference between those settings and just use the plain setting, thinking the tag means something 'bad'? (In some senses, their instinct may be correct, as the eco profile likely isn't as good as cleaning as other profiles...)
--- End quote ---
Probably most of them. My washer has a bunch of settings I never touch, and my dryer has a fancy continuous temperature adjustment slider I never mess with either, except when it burned out and I had to replace it.
On that note, it's a rather stupid design. I assumed it did something like measure the temperature of the air flowing through the dryer and cycle the heating element accordingly with an electronic control but no, it's nothing more than a potentiometer connected directly to mains voltage that is in series with a power resistor attached to the bimetal thermostat that regulates the element temperature. Turning down the slider increases the current through the resistor which heats up the thermostat, indirectly reducing the heater temperature. :palm:
james_s:
--- Quote from: Alex Eisenhut on December 29, 2020, 03:58:51 pm ---I wonder how long it takes for the capsules to dissolve? I mean when the powder detergent is dispensed it must dissolve almost instantly and starts washing. The pouches must take time to reach full strength and take away cleaning time from the cycle?
--- End quote ---
It wouldn't be too hard to do a scientific test to find out. I don't think it's significant though, the pouches dissolve very quickly, you have to remember to dry your hands before handling them or they start to get gooey. Whatever the case, the pouches I've been using result in very clean dishes, maybe that's due to having exactly the right quantity of detergent, maybe it's due to the composition of the detergent, maybe something else or maybe a combination of things.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version