Uk members - waste disposal units

[lederstiefel1]

BTW...
the German drain system is totally different to the English!
All pipes are inside the house (because of frost in winter-time) and are all installed into the walls of a house. The vertical collection drain into which all horizontal pipes from tub, basin, sink, shower and others empty, goes right over the roof to have a ventilation which is necessary to avoid a syphoning condition to the water-traps. Toilets are usually connected directly to the collection drain.
From there all collection drains end up in a big horizontal collector pipe underneath the basement floor of the house and empty from there into the street's sewage system.

Ralf

 

[toggleswitch]

English spoken, American understood.

I must say that the UK's plumbing and electrical ways are entirely different that those of the US. One of the best investments I made was picking up a DIY book regarding such matters. It was an epiphany! Here are some other references from my library, ancient thought they may be. Conveying what it was I was looking for to the book-seller was the hardest part!

US reference on left, UK reference on right,
where IEE= Institute of Electrical Engineers.

 

[toggleswitch]

.

 

[toggleswitch]

1inch = 2.5 cm.

Neil:

Above is a typical America kitchen sink with a 4 inch (10cm) drain opening used with or without a disposer.

As seen above there is typically a strainer or strianer basket when used without a disposer.

Don't your sinks on that side of the pond need to have the drain opening enlarged to fit (install) a disposer?

Here is the same sink without the strainer. You will note that the 4 inch opening transitions down to a 1.25 or 1.5 inch wide pipe

 

[toggleswitch]

Here is another sink, but with a disposer.

No strainer or other obstruction.

 

[toggleswitch]

In terms of wiring, I ran a new line to my dishwasher which was relocated to the other side of the sink. On the way to the DW, there is now an electrical "stop" in the sink cabinet with a large surface-mounted junction box.

Two swtiches control two outlets/power-points. One switch-controlled outlet is for a plug-and(flex)cord connected disposer, the other is for a light-bulb (lamp) socket that plug into the outlet.

This avoided chopping walls, and adds a conveninece light to the cabinet.
The lamp is somehwat hidden in this pic.

 

[toggleswitch]

another pic.

OK too much posting for one day. CHEERS!

 

[vivalalavatrice]

Draining

Here in Italy as I read it works more or less like in Germany...

There's no said to pay attention to installing a disposer under your sink here... this should mean that however is your drainig system built-up you ever could place your disposer...

Every trap has got a U/bottle gully...(btw gully in italian is "sifone") there's a wash-basin's gully, a showerplate's gully and somewhere is applied a washer drain pipe gully...
All go to the horizontal line in old house, new plants are preferred to left a separate line for each trap until the vertical connector ("braga"), where usually is directly attached the WC.

Then the vertical draining is linked to the sewer with a big S gully if there's not a box joining more than one vertical lines...

Here the rules want you to have an air ventilation for each vertical lines and if you have a basemente you could not waste the water raining trhough the sewere...so you should need to pump it out!
Always a rule say that "is forbidde to through out of the sewer line any solid waste"... so people who cause clogged in vertical lines (it happens sometimes in condos!!!) have to pay all damnes caused! This because here there's no an high-rate on waste disposers!

BYE
Diomede

 

[toggleswitch]

Toronto and New York City were the only North American cities PROHIBITING food-waste disposers for ages. Other cities (especially in the south) REQUIRED them! Keeping food out of the garbarge in warm climates prevents infestations and discourages scavengers...(of the four-legged variety!)

Although geberally thought of as Latin America, North America includes Mexico!

 

[hoover1060]

critters...

My neighborhood was built in the early 70's, and by then most all new housing built around here included a garbage disposer. I know all the homes here did(ISE Badger I's were originally installed) I can walk up the sidewalk on trash day(Wednesday morning)and know immediately who uses their garbage disposal and who does not.
All the garbage bags with food scraps/waste in them have been torn open, with the contents spread around, then the raccoons and possums and skunks have their buffet. On a few occasions they have even tipped my trash can over outside the back door, to feast on whatever might be in there. After cleaning up from the buffet once, I started using my disposer more and have had not hosted the raccoon buffet since.

 

[glamwales]

I believe you can buy an optional extra which allows it to fit small hole sinks.....

 

[74simon]

Hey Mike, that's what always freaks me about waste disposals... I can think of several films in which they've maimed folks! If something went down ours, I'd always remove the fuse before shoving my hand down there!

Toggles, UK sinks are available with both sizes of drain outlet. The only unit we ever owned was fitted to a double sink with a full sized basin which had a standard plughole, and a much smaller basin which incorporated the disposal unit. Personally I consider them an indulgence, but then many of the places I've lived in have had enclosed external storage for refuse, so animals etc can't get at it.

Personally, I find the Garchey system fascinating, as fitted to various blocks of flats after WW2!

http://www.barbicanliving.co.uk/d11a.html

 

[MrX]

The problem is this--

The gully system is perfectly ok for handling normal grey water i.e. soapy water from sinks, showers, dishwashers, washing machines etc. This kind of water contains very little actual food matter, and any that is in it will be well diluted and washed away. They normally remain extremely clean and function well under these circumstances.

If you intentionally pump a lot of food matter into this system i.e. down the gully trap it can create serious problems.

i.e. smells, attract insects and possibly rodents.

A waste disposal needs to be connected via a U-bend trap directly to a riser (i.e. the same as a toilet basically)

In Ireland you can find both types of set up i.e. sinks connected directly to risers etc more like the US / continental europe, but the gully system is by far the norm and the preferred way of doing things. Apartments etc would generally use closed systems.

All sinks etc have a U-bend or bottle trap too regardless of type of system.

I think the reason for the gullies was simply that they did not like connecting sinks directly to sewage systems. Regardless of what happens to the sewers you will not get any risk of anything foul entering a sink, bath, washing machine stand pipe etc in a typical UK/Irish system.

Where as with a closed system, if the drains do block you can get foul water entering sinks.. (rare, but it could in theory happen if the pipe work backs up)

Also, almost all drain pipes are outside on houses here, it's rare to have them in the walls, other than in apartment buildings / offices etc.

 

[MrX]

UK/Ireland water supply plumbing!

UK/Irish domestic hot and cold water supply is weirder still !

This diagram describes how a typical house here provides its hot and cold water.

The kitchen i.e. sink, washing machine and dishwasher are supplied with water directly from the mains, but the bathrooms are all fed by a header tank in the attic!

Typically, if you want high pressure showers they're supplied via a double header pump (pumps hot and cold simultaniously). This is activated when it detects any water flow to the shower via a little automatic switch sensor.

View attachment 12-11-2007-15-02-5--mrx.jpg.png

 

[toggleswitch]

From what I had read in my DIY manuals, the common-denominator appears to be that great pains are undertaken to prevent the hot water producing tank /system from being under ordinary mains pressure.

Another interesting thing (to me) that came to my attention via aforesaid DIY manuals was UK fireplace inserts that heat water with an automatically-controlled gas flame. In effect is is an automatic boiler for heating and hot water (for the taps). Seems like an attempt to use an exisitng fireplace in an old dwelling for automated heat and hot water. IIRC the gas flames are behind a sheet of glass and are visible from the room. It's practical and aesthetically pleasing!

I thought to myself if I could import this, there would be ready-market!

 

[glamwales]

Toggle

I have one . this is my fire and boiler ! dont even need the glass these days !

 

[lederstiefel1]

English system

Yes, that is the great difference between the continental system and the British System.
We have all water under pressure here (hot & cold) at any place (bath, kitchen, etc.) which also enables to install pressure flushs in toilets although they are not very popular because of the pressure undulation they evoke in the pipes.
The thing with the drain...
Here it would all freeze in winter-time if pipes would be installed outside the house, so there is no way than installing them inside the walls.
But you are right to say so, that in case of trouble we have to open the walls or the basement floor to repair the pipes.

Ralf

 

[chestermikeuk]

Baxi Bermuda - Back Boilers!!

Hi Steve, I`ve often wondered why they are not popular elswhere, but as new house are built without fireplaces its easier to stick in a small combi...
Baxi first started making these backboilers that sit in the chimney in the 60`s, they are synonymous with quality and style. The brand has sold on its reputation for years, solid cast boilers and reliable. My parents have had one since 1968, updating the fire fronts and one change of boiler with the latest fire 8yrs ago...heres Ella in front of it, here favorite spot!!!

http://www.a1-gas.co.uk/html/heatprod/baxi.html

 

[toggleswitch]

I apologize for hijacking the thread and taking it into this direction, but since we love the UK and the mother country's ways........

Thanks all for the info.!

 

[toggleswitch]

For those of us outside the UK-

The component in the diagram labeled "A" is the water storage cistern (header tank) located near the highest peak of the house, above all water fixtures.

My understanding is that it fills as a toilet tank would with a ball-and-float type of water "metering" device.

Its purpose is to produce a gravity-fed flow of water to the hot water supply system/pipe.