Yet Another Cycling Forum

General Category => The Knowledge => OT Knowledge => Topic started by: The Family Cyclist on 03 July, 2023, 08:52:29 pm

Title: Upstairs toilet. Any bright ideas
Post by: The Family Cyclist on 03 July, 2023, 08:52:29 pm
We only have a downstairs toilet and bathroom which I think was initially a outhouse that got incorporated to the back of the house. The drainage for this goes along the back of the house. The bog pipe goes down into the floor so can only assume then goes underground to join the drain.

The sink and bath waste pipes go out the wall and into a drain which can only assume joins the sewer that the toilet empties into

We could really do with another toilet especially with two growing kids. I'm just trying to work out if this is doable without a lot of work. The only place we could have a  upstairs toilet would be the front bedroom as we have a large alcove bit we could fit one in but not sure how to make drainage work. Was considering a macerator but still need to get waste from front of house to back. The joists run front to back not across so that's a good thing. However getting waste outs going to be a challenge. Think would need to bring out back of house fairly straight. Into a stack/vent pipe which would need to go down into the courtyard area we have and would need to connect this to the sewer which would involve digging up some of the concrete underneath

Anyone think of a better or out the box solution. I've had a look and no-one has toilets at front of house. Many people have converted one of the back bedrooms to a bathroom and all have stack pipes. Some even out the roof

I might just build a composting toilet for me to use down the garden
Title: Re: Upstairs toilet. Any bright ideas
Post by: rogerzilla on 03 July, 2023, 09:27:35 pm
If the house drains run to the road, you just need a new stack at the front.  I see it done a lot.  Yes, there is digging, but not much.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Kim on 03 July, 2023, 10:11:21 pm
Sell the house... (https://groups.google.com/g/uk.d-i-y/c/TbH8i-QZrsg)
Title: Re: Upstairs toilet. Any bright ideas
Post by: The Family Cyclist on 04 July, 2023, 06:54:25 am
Sell the house... (https://groups.google.com/g/uk.d-i-y/c/TbH8i-QZrsg)

I've considered that but the location is too good for us currently. We have a great community around us, my wife's work is end of the road  and we have a large garden which we wouldn't get anywhere else within budget locally

Rogerzilla as far as I can see only rainwater drains to front/Road  the sewers seem to run along back. Not sure where to
Title: Re: Upstairs toilet. Any bright ideas
Post by: MattH on 04 July, 2023, 07:27:05 am
Sell the house... (https://groups.google.com/g/uk.d-i-y/c/TbH8i-QZrsg)

Peter Parry - that's a name I've not seen in a very long time. And the solution was my first thought too  :)
Title: Re: Upstairs toilet. Any bright ideas
Post by: robgul on 04 July, 2023, 07:35:44 am
IME - under no circumstances install a macerator - unreliable and not good for "positive clearance"
Title: Re: Upstairs toilet. Any bright ideas
Post by: The Family Cyclist on 04 July, 2023, 07:46:01 am
Ah missed the sell the house being a link
Title: Re: Upstairs toilet. Any bright ideas
Post by: rogerzilla on 04 July, 2023, 07:56:51 am
IME - under no circumstances install a macerator - unreliable and not good for "positive clearance"
At least it's not as bad as installing one in a basement, where it needs to pump upwards and you can imagine what happens when it inevitably needs unblocking.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Von Broad on 04 July, 2023, 07:58:19 am
Anyone think of a better or out the box solution. I've had a look and no-one has toilets at front of house. Many people have converted one of the back bedrooms to a bathroom and all have stack pipes.

There's a clue in that fact. First of all you want to work out exactly how the sewer runs. Check out the man-hole covers round the place [your place, neighbours etc] and get a picture of how it all works. That will determine all your options.
Title: Re: Upstairs toilet. Any bright ideas
Post by: mrcharly-YHT on 04 July, 2023, 08:01:16 am
Similar situation with our house in York. MrsC was all keen on a macerator toilet at front of house, saying that her dad had installed them. I pointed out that when the macerator toilet ceased working in their house in France, he didn't bother repairing it.

Never did get a second toilet installed in that York house.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Von Broad on 04 July, 2023, 08:06:00 am
IME - under no circumstances install a macerator - unreliable and not good for "positive clearance"

I'd be inclined to agree. Don't ask me how I know this.

But....if it's the absolute and only option, they do work, but they have to be respected!

From my experience of houses I've worked in, the crucial thing about macerators in what they're asked to deal with.
Here's a tip: do not, under ANY circumstance dispose of sanitary products into a toilet that has a macerator attached too it.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Asterix, the former Gaul. on 04 July, 2023, 08:41:22 am
If you are desperate enough to consider a macerator then here is your salvation!

Porta-potti (https://www.amazon.co.uk/Thetford-Porta-365-Camping-Toilet/dp/B006AUOR1W)?

Simple, cheap, stood the test of time.
Title: Re: Upstairs toilet. Any bright ideas
Post by: L CC on 04 July, 2023, 08:53:45 am
IME - under no circumstances install a macerator - unreliable and not good for "positive clearance"

Agreed.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Jurek on 04 July, 2023, 09:01:44 am
IME - under no circumstances install a macerator - unreliable and not good for "positive clearance"
At least it's not as bad as installing one in a basement, where it needs to pump upwards and you can imagine what happens when it inevitably needs unblocking.
We had such an arrangement at one place I used to work.
Failure was aided and abetted by some miscreant mischievously popping a biro top down the loo every few days.
Pimlico Plumbers did very well out of my ex-employer on many occasions as a result.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Ham on 04 July, 2023, 10:00:03 am

Rogerzilla as far as I can see only rainwater drains to front/Road  the sewers seem to run along back. Not sure where to

Rainwater ends up in the same sewers, the gully is the U-bend to stop stinkyness.

in some cases, rainwater will go to a soakaway, but rarely if ever in a normal build situation. Look for manhole covers to give you an idea of the run (including in the street, remember street drains end up there, too), lift your manholes up to investigate and it may become clearer. Mostly (!!) sewers run down the middle of the road, about 3m down.
Title: Re: Upstairs toilet. Any bright ideas
Post by: T42 on 04 July, 2023, 10:19:36 am
We once rented a house that had a Saniflo or similar in the bathroom upstairs.  Before we went there with the estate agent the neighbours told us that the previous occupants had had trouble with it, so I mentioned this when we viewed the place. The goose said "no, it's fine" and pressed the flush to demonstrate, forgetting that the electricity was off.  It appeared to work, but when we moved in we found that the wall of the downstairs loo, directly below, was wringing wet and soggy with the wallpaper hanging off. Didn't smell too great either.

Oh, the pleasures of renting.

Moral: when power be offe, ye wise maen seeketh not to shitte.
Title: Re: Upstairs toilet. Any bright ideas
Post by: matthew on 04 July, 2023, 10:31:05 am

Rogerzilla as far as I can see only rainwater drains to front/Road  the sewers seem to run along back. Not sure where to

Rainwater ends up in the same sewers, the gully is the U-bend to stop stinkyness.

in some cases, rainwater will go to a soakaway, but rarely if ever in a normal build situation. Look for manhole covers to give you an idea of the run (including in the street, remember street drains end up there, too), lift your manholes up to investigate and it may become clearer. Mostly (!!) sewers run down the middle of the road, about 3m down.

Whilst in some areas rainwater ends up in the same sewer (Combined sewer), in others there are two separate sewers for rainwater and foul. The second of these scenarios is the higher standard and better as it reduces the risk of overloading the sewers in a storm event but does impose a need to be very careful not to misconnect foul to the surface water drain.

However, given the description of the housing stock I suspect it is a traditional Victorian terrace and that there will be a combined sewer.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Jaded on 04 July, 2023, 10:35:18 am
If you install a Devil’s  machine for tenants, make it clear that they should not tip mop buckets into the loo. Especially ones with paper clips in.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Mrs Pingu on 04 July, 2023, 01:34:20 pm

Here's a tip: do not, under ANY circumstance dispose of sanitary products into a toilet
FTFY
Title: Re: Upstairs toilet. Any bright ideas
Post by: rogerzilla on 04 July, 2023, 05:25:31 pm
Rainwater never goes into sewers for new builds these days (and hasn't for years), but often does in older houses.  All the shit in rivers is due to rainwater going into the sewer.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Von Broad on 04 July, 2023, 07:45:46 pm
The joists run front to back not across so that's a good thing.

Well.....

Reminds me of a job I did for a woman during the pandemic. She wanted a toilet upstairs in one of the bedrooms. She was told 'sorry, not possible', and I tended to agree - initially. We had a good look at it, and without going into details [bit difficult to describe], I had to remove and refit a double fitted wardrobe, then ran a soil pipe [luckily], above ground but made a step into the bathroom, then dropped the soil pipe into the joists parallel to the joist, hit a wall, then dropped the soil pipe into the lounge [sounds nice, eh?] really tight to the ceiling and wall, and joined the stack at the back of the house. Boxed it in, and hey presto. Took ages. Looks and lots of fiddling stuff. Forget regs now, but something like 1 in 40 drop for solids and 1 in 100 for fluids, and distances? not sure..
And was she happy? she was well chuffed. And to be honest I was pleased with what I'd done too.

So, make sure you investigate the remote possibility of running a 4inch soil pipe internally first. Often it's not going to happen, but sometimes these things are possible. Sometimes it just needs somebody who is prepared to give it some thought.
Title: Re: Upstairs toilet. Any bright ideas
Post by: The Family Cyclist on 04 July, 2023, 07:55:53 pm
Thanks for all the advice guys. This forum really is so much more then a cycling forum. I need to investigate front drains as the gutter downpipe runs basically where youd want a stack pipe.

No visible drains out front will much further down road but guess there must as suggested be a drain under road. Our back the rain and waste I'm sure go into same drain/sewer.

Need to try and find out for certain what drains out front. If it can take waste the whole things a (comparative) piece of piss

Oh age wise our house is c1912 and houses opposite are newer but probably 40s ish

Edited just looked out window as it's pissing with rain and there's a manhole cover on the drive of the end house of our block so may exit the backs of houses there
Title: Re: Upstairs toilet. Any bright ideas
Post by: T42 on 05 July, 2023, 08:05:07 am
If you install a Devil’s  machine for tenants, make it clear that they should not tip mop buckets into the loo. Especially ones with paper clips in.

OTOH it might be advisable to keep a mop bucket in the loo, where it's handy.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Asterix, the former Gaul. on 05 July, 2023, 08:48:49 am
Rainwater never goes into sewers for new builds these days (and hasn't for years), but often does in older houses.  All the shit in rivers is due to rainwater going into the sewer a failure to invest in the infrastucture for some unknown reason.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Jaded on 05 July, 2023, 09:16:25 am
If you install a Devil’s  machine for tenants, make it clear that they should not tip mop buckets into the loo. Especially ones with paper clips in.

OTOH it might be advisable to keep a mop bucket in the loo, where it's handy.

Ah this was a real humdinger.

The Devil's machinery was put into a cupboard, as the letting agents had said the three units next to it had access to a toilet. (Thy did, but it involved going up three flights of stairs to the next floor, then along a corridor to the other side of the building). Yes, there was a high ceiling to these units and, yes, the height was just below the maximum recommended for the Devil's machine. Large loads caused problems, as did mop bucket emptying.

After several 'unblocking' events, the tenants in the three units decided that decommissioning and accepting there was no nearby toilet facility was better than brown floods in their service corridor.
Title: Re: Upstairs toilet. Any bright ideas
Post by: rogerzilla on 05 July, 2023, 10:31:35 am
Rainwater never goes into sewers for new builds these days (and hasn't for years), but often does in older houses.  All the shit in rivers is due to rainwater going into the sewer a failure to invest in the infrastucture for some unknown reason.
It is six of one and half a dozen of the other.  Heavy rain wouldn't cause sewage overflows if it didn't go into the system, but that's a mistake made by planners, regulators, and builders of the distant past.  You could argue that the system should by now be sized to cope with such things, since the problem is baked-in and well-known.

Some sewage overflows aren't due to rainfall - there is a fairly persistent one in north Swindon that requires an army of tankers every few weeks.  That is due to bad sewerdesign/construction, I think, or a failure to upgrade the system to accimmodate tens of thousands of new houses.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Asterix, the former Gaul. on 05 July, 2023, 11:08:11 am
 
Rainwater never goes into sewers for new builds these days (and hasn't for years), but often does in older houses.  All the shit in rivers is due to rainwater going into the sewer a failure to invest in the infrastucture for some unknown reason.
It is six of one and half a dozen of the other.  Heavy rain wouldn't cause sewage overflows if it didn't go into the system, but that's a mistake made by planners, regulators, and builders of the distant past.  You could argue that the system should by now be sized to cope with such things, since the problem is baked-in and well-known.

Some sewage overflows aren't due to rainfall - there is a fairly persistent one in north Swindon that requires an army of tankers every few weeks.  That is due to bad sewerdesign/construction, I think, or a failure to upgrade the system to accimmodate tens of thousands of new houses.


Where does 'army of tankers' take it?  Is it incinerated?

When I used to sail on the lower reaches of the Thames we used to see a regular procession of grey-painted what we called 'Bovril Boats' (https://en.wikipedia.org/wiki/Bovril_boats#Royal_Commission).  Despite their function, they were renowned fro their smart appearance and upkeep. Jobs aboard were much sought after.

Quote
A Royal Commission of 1882 concluded that it was necessary to create a cleaner river by separating the sludge part from the liquid sewage and remove it via boat for disposal at sea. In 1887 the first ship of a long line of 'pump and dump' effluent tanker vessels was launched. These ships, later nicknamed by those who crewed them as Bovril boats to describe their brown liquid cargo, were very well maintained, as hygienic as possible, and specially designed for marine disposal. Complex hydrostatic calculations had to be made when carrying liquid cargo but crews received reasonably good pay and regular work. The last of the fleet were: Bexley, Hounslow, and Newham, all named after London Boroughs.

European Union legislation[edit]
In the 1990s, European Union legislation forbidding the dumping of raw sewage at sea, and increasing environmental concerns that sewage was contaminating beaches, led to the phasing out of the fleet and many were scrapped or sold on to private companies. Newer technology [6] finally allowed the sludge to be incinerated in a self-powering incinerator and sold on as fertilizer pellets for use on food crops.

Perhaps leaving the EU has made it acceptable to use rivers and the sea again.
Title: Re: Upstairs toilet. Any bright ideas
Post by: rogerzilla on 05 July, 2023, 11:25:34 am
https://www.swindonadvertiser.co.uk/news/23357366.swindon-sewer-bursts-waste-water-entering-river/

I don't know where the tankers go, but the alternative seems to be that it finds its way to the river overground, which is even more gross than a deliiberate outfall.
Title: Re: Upstairs toilet. Any bright ideas
Post by: L CC on 05 July, 2023, 02:19:17 pm
Where does 'army of tankers' take it?  Is it incinerated?

Some of it goes for energy generation, for example: https://www.yorkshirewater.com/education/poo-power/
Title: Re: Upstairs toilet. Any bright ideas
Post by: Quisling on 17 July, 2023, 04:22:55 pm
IME - under no circumstances install a macerator - unreliable and not good for "positive clearance"

I'd be inclined to agree. Don't ask me how I know this.

But....if it's the absolute and only option, they do work, but they have to be respected!

From my experience of houses I've worked in, the crucial thing about macerators in what they're asked to deal with.
Here's a tip: do not, under ANY circumstance dispose of sanitary products into a toilet that has a macerator attached too it.

On two occasions my daughter, or her friends, have disposed of something of this ilk and jammed our macerator.  On the last occasion, the toilet cistern float valve was also letting by slowly, resulting in an overflow of the jammed macerator and shitty water coming through the ceiling.

That said, the macerator does usually work, and pumps satisfactorily the blended ordure along a 22mm pipe under the floor to the other side of the house, and thence into a soil stack.  Note: whilst your floor joists may run in the right direction, there could be noggins between them that would prevent easy installation of a 22mm pipe.  Worth lifting a floor board to investigate.
Also, if you're installing a new soil stack, is there any issue with the top vent location - i.e. do you have loft level velux windows?
Title: Re: Upstairs toilet. Any bright ideas
Post by: robgul on 17 July, 2023, 08:17:53 pm
IME - under no circumstances install a macerator - unreliable and not good for "positive clearance"

I'd be inclined to agree. Don't ask me how I know this.

But....if it's the absolute and only option, they do work, but they have to be respected!

From my experience of houses I've worked in, the crucial thing about macerators in what they're asked to deal with.
Here's a tip: do not, under ANY circumstance dispose of sanitary products into a toilet that has a macerator attached too it.

On two occasions my daughter, or her friends, have disposed of something of this ilk and jammed our macerator.  On the last occasion, the toilet cistern float valve was also letting by slowly, resulting in an overflow of the jammed macerator and shitty water coming through the ceiling.

That said, the macerator does usually work, and pumps satisfactorily the blended ordure along a 22mm pipe under the floor to the other side of the house, and thence into a soil stack.  Note: whilst your floor joists may run in the right direction, there could be noggins between them that would prevent easy installation of a 22mm pipe.  Worth lifting a floor board to investigate.
Also, if you're installing a new soil stack, is there any issue with the top vent location - i.e. do you have loft level velux windows?

22mm pipe is brave - the thing I had went into 32mm plastic waste pipe and that wasn't brilliant at clearing/flowing even with good falls.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Quisling on 18 July, 2023, 11:32:24 am

22mm pipe is brave - the thing I had went into 32mm plastic waste pipe and that wasn't brilliant at clearing/flowing even with good falls.

Yes, it's not an install that I'd have done by choice but it was here when we bought the house.  The macerator lifts the waste up about 30 cm to create a bit of head pressure before the "juice" drains out presumably under a degree of gravity but possibly with a bit of pump pressure behind it.  I guess when it gets moving, the outfall into the soil stack creates a bit of a siphon.  Seems to work okay. I guess there's a design balance to be struck between big diameter pipes and the higher velocity achieved in a smaller pipe with a bit of pressure behind it.

The biggest issue we have (apart from teenage girls sanitary disposal habits...) is the float switch diaphragm hardens with scale or general deterioration of the rubbery material and needs replacing every year or two so there's a definite maintenance cost.  The sanitary blockages always occur in the "poo blender" part of the equipment, not in the downstream pipework.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Von Broad on 18 July, 2023, 10:01:31 pm
22mm pipe is brave - the thing I had went into 32mm plastic waste pipe and that wasn't brilliant at clearing/flowing even with good falls.

Bearing in mind of course that the inside diameter of 32mm MDPE is about 26mm, so given that the wall thickness of 22mm copper is that much less than plastic, there's not a great deal in it really. From the few I've installed [thankfully it's not a regular occurance - although initial installation is fine, it's returning that is less than desirable!] the actual outlet pipe supplied with the unit is usually really quite small in diameter, so right from the initial output after the pump the 'stuff' is being put through quite a small bore to begin with.

I guess there's a design balance to be struck between big diameter pipes and the higher velocity achieved in a smaller pipe with a bit of pressure behind it.

Yes, that's what I've always thought. Unfortunately my knowledge or ability to explain such aspects of engineering is very limited, but I'd imagine that the bigger the pipe [depending on the fall] the more probability there is for residue to gradual build up. Maybe.

I'm not sure what the regs say [if anything] about the fall of a macerator outlet pipe, but bearing in mind most of the disposal is carried out by the pump and when that stops doing its thing there is undoubtedly going to be 'stuff' left in the pipe that hasn't had chance to escape, which if vertical [from my experience] is either going to fall back into the unit itself, or stay behind a non-return valve? [maybe].....but the stuff further down the line is going to rely on gravity to drain away. Under normal circumstances with soil pipes and smaller bathroom waste pipes you're going to need a minimum drop of 1:40 for soils and fluids can drain on as little as 1:100. You've obviously want more than this for macerators, but does it really matter? and the distance it has to travel to the soil pipe is obviously also important.

Getting down into the weeds a bit here - such a cool subject :-)
Title: Re: Upstairs toilet. Any bright ideas
Post by: mrcharly-YHT on 20 July, 2023, 12:06:56 pm
I'm not sure it would be desirable for a macerator outlet pipe to gravity-drain. More chance of blockages building up that way.
If it remains 'full' then the whole lot will be pushed along when the macerator runs.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Rod Marton on 20 July, 2023, 12:28:09 pm
When I installed a macerator in a previous house I used a proper marine macerator with as wide a pipe as possible (at least 32mm). Theory behind this was the macerator would push anything out to the main sewage system. I never had a problem with it - unlike the one I found when I moved here which had a narrow pipe, long run and vertical climb. Family were rapidly instructed not to put anything vaguely solid in that toilet.
Title: Re: Upstairs toilet. Any bright ideas
Post by: rogerzilla on 20 July, 2023, 12:55:52 pm
The former in-laws owned a holiday cottage in Weardale.  They had an upstairs bog installed with a macerator.  When we stayed there, there was a cast-iron No.1 Only rule, and you had to shake the lettuce/pump nozzle rather than use toilet paper.  Hence everyone used the downstairs one.
Title: Re: Upstairs toilet. Any bright ideas
Post by: Wowbagger on 20 July, 2023, 02:42:59 pm
I’m damned certain that I were lumbered with a macerate style bog, I would introduce a law banning solids in it.
Title: Re: Upstairs toilet. Any bright ideas
Post by: chrisbainbridge on 20 July, 2023, 04:17:09 pm
I’m damned certain that I were lumbered with a macerate style bog, I would introduce a law banning solids in it.
I thought damning was the result of the solids?
Title: Re: Upstairs toilet. Any bright ideas
Post by: The Family Cyclist on 20 July, 2023, 04:47:48 pm
I did genuinely consider an compost toilet down the garden but have the problem that for it to be as far from the house as possible it would be too close to the little stream through my garden
Title: Re: Upstairs toilet. Any bright ideas
Post by: rogerzilla on 20 July, 2023, 04:54:48 pm
A friend of a friend (I did actually meet him once, and gave him a wide berth) did what monkeys do.

(click to show/hide)
Title: Re: Upstairs toilet. Any bright ideas
Post by: fd3 on 28 July, 2023, 11:14:13 pm
Electric compostable toilet?  They make them for indoors.
If you are not going to move, the next expensive step is convert the back room to an upstairs bathroom and then adapt the loft for living space (possibly with en suite).  A snip at 50k.
Title: Re: Upstairs toilet. Any bright ideas
Post by: The Family Cyclist on 29 July, 2023, 07:44:04 pm
Electric compostable toilet?  They make them for indoors.
If you are not going to move, the next expensive step is convert the back room to an upstairs bathroom and then adapt the loft for living space (possibly with en suite).  A snip at 50k.

We considered that a few years back but have high ceilings and a corresponding low attic so would need the whole of upstairs ceiling to be dropped as well as the loft conversion
Title: Re: Upstairs toilet. Any bright ideas
Post by: fd3 on 29 July, 2023, 09:17:05 pm
If you are considering that level of investment, what about extending above the outhouses?
Title: Re: Upstairs toilet. Any bright ideas
Post by: Jaded on 30 July, 2023, 01:03:46 am
Re-looking at the thread title.

A guzunder?
Title: Re: Upstairs toilet. Any bright ideas
Post by: The Family Cyclist on 30 July, 2023, 07:40:43 am
If you are considering that level of investment, what about extending above the outhouses?

Honestly reading some of this does make me wonder why we don't just move but really do like out house and location.

We can't go up out the back. Due to them being tightly terraced would block the light to neighbours (both neighbours have extended out single story and were told single story only when getting planning/permission to develop

Title: Re: Upstairs toilet. Any bright ideas
Post by: Pickled Onion on 30 July, 2023, 08:57:54 am
Re-looking at the thread title.

A guzunder?

That's not such a silly idea. I have a Simploo (http://=https://www.boat-renovation.com/simploo-compost-toilet-a-full-review/) and a "no solids except in emergencies" rule. Also a "sit down to wee" rule. When it's full you put the lid on the urine bottle, lift it out and empty it down a standard bog.

Most owners find solids are fine, there's a fan that draws air through and out into a carbon filter. This stops it smelling and dries the solids out fairly well. I just use the bucket at the back for used tissue.