What are those sliders for?

[saveasteading]

 

I have successfully removed the bits from the Roca concealed cistern. There was an excellent video, although it was difficult to find.

further to an earlier post, I was very pleased to find an additional stopcock inside.  the space available is tiny but it all clicks apart. I dread dropping anything.

The quality is stunning, although we will see if it goes back together again 

I was expecting to find lime on the washer, thus being easy to stop the constant running, but there was no buildup. So I have given it a clean anyway and will shortly start the reassembly.

 

But I am concerned that I have moved these red sliders. I had assumed that they adjust the water flush quantity, but I can't see any effect on the mechanism.

The top one is labelled 'half, and bottom one labelled 'full', so that is simple enough.

On the red sliders the top one is marked  >POM<1-2

The bottom one is marked  <POM<1-3  I don't know what POM means.

 

and behind the sliders are scales the top one being 0 to 12, the lower one being  0-8

 

the picture attached is a screenshot from the video apparently set at zero for full flush and 12 for half flush.

 

confusing or what? I will accept any guesses but obv would love any real knowledge.

 

 

I  think I am going to put it back together with both high numbers.

 

Might see if I can reduce the fill level too in case that is the issue.

 

 

 

 

 

[marshian]

Adjusting the flush volume for short flush and long flush

 

get them in the right orientation and the flushes are both the same volume 

 

(expletive deleted)ing hate modern toilet flushes that are supposed to save water with a 3 L short flush and a 6 L full flush - no-one ever uses the short flush and it won’t clear a good piss from the pan

 

and don’t get me started on a number 2 that needs 2 full flushes to clear the pan

 

give me an old ceiling level thunderflush any day 

[saveasteading]

  On 09/03/2025 at 19:31, marshian said:

get them in the right orientation 

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That's  the query really.  

acc to the spec, the thing seemingly does, as suggested above,  3/6litre flushes    I assume that means up to 3 and up to  6 litre, so what the scales saying 0-8 and 0-12 means is  a mystery.

And POM does not appear as plumbing on any searches .

[dpmiller]

POM is the type of plasic the part is made from, is it not?

[saveasteading]

The good news first.

Roca have been very helpful in identifying the replacement part needed.

Their film of how to dissemble is slick and quite accurate.

Not so good :

it needs a new inlet as I have identified that it doesn't close off and apparently it isn't cleanable.

And I dropped a bit into the tank. It's a plastic spigot that the front plate screws into. Value about 10p. But the tank is so narrow that I can't get my hand in. If only they made the tank an inch wider or the part floated.

And roca have gone quiet on the part number. I might end up bodging a way of fixing the plate on.

 

I've been several hours doing this and now starting again. I wonder if a typical plumber would have known what to do.

 

Moral....beautifully made but impractical. The next house is having exposed cisterns and that is my advice to anyone.

[dpmiller]

flexible pearl-catcher grabber thingy?

[markc]

  On 11/03/2025 at 10:54, dpmiller said:

flexible pearl-catcher grabber thingy?

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Great description - I know exactly what you mean

[G and J]

  On 11/03/2025 at 00:31, saveasteading said:

The good news first.

Roca have been very helpful in identifying the replacement part needed.

Their film of how to dissembleis slick and quite accurate.

Not so good :

it needs a new inlet as I have identified that it doesn't close off and apparently it isn't cleanable.

And I dropped a bit into the tank.It's a plastic spigot that the front plate screws into. Value about 10p. But the tank is so narrow that I can't get my hand in. If only they made the tank an inch wider or the part floated.

And roca have gone quiet on the part number. I might end up bodging a way of fixing the plate on.

 

I've been several hours doing this and now starting again. I wonder if a typical plumber would have known what to do.

 

Moral....beautifully made but impractical. The next house is having exposed cisterns and that is my advice to anyone.

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A wet vacuum?   If you can see the beastie laying at the bottom of the cistern giggling at you then you may be able to suck it up and save yourself the tenpence…..

[saveasteading]

Can't see it but I may try.

May see is the right size of child is prepared to put an arm in there.

 

Otherwise I need to make one.

Plasticine for a mould. Anyone know if there is a plastic that will then squeeze in and harden sufficiently?

[sharpener]

  On 12/03/2025 at 09:15, saveasteading said:

Anyone know if there is a plastic that will then squeeze in and harden sufficiently?

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Have found exactly this in B & Q, quite good for making small bits, putting a rounded corner on tiling, sticking a mirror to tiles, sorry can't remember the name.

 

Ronseal white polyester resin woodfiller might be good, or epoxy putty.

[torre]

  On 12/03/2025 at 09:15, saveasteading said:

Anyone know if there is a plastic that will then squeeze in

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Polymorph is a mouldable plastic - pellets that melt in hot water. The mould might need to be firmer than plasticine though

[saveasteading]

I've got some of that mouldable stuff (just in case) but forgog about it anf never tried it. I could maybe model it as as a tube with a groove and a screw hole.

First I will see if a masonry fixing will fit. One of these new Fischer ones. That sounds tooeasy.

Edited March 12 by saveasteading

[sharpener]

If you can get away with something that will take ordinary screws then the toggle fasteners that have a plastic rawlplug bit with two wings in front that splay out might be something to consider.

[saveasteading]

 

One of these. 12mm dia might do it and they are supposed to grab hold behind, though it works better for the demonstrator than for me.

 

[G and J]

  On 12/03/2025 at 09:15, saveasteading said:

May see is the right size of child is prepared to put an arm in there.

 

Otherwise I need to make one.

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Will you train it to go up chimneys too?   😉

 

(sorry, long day, I’m bordering on being giggly tired!)

[saveasteading]

  On 12/03/2025 at 19:45, G and J said:

Will you train it to go up chimneys too?  

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We will regard this as a test.

My  hunch is of being declined.