Advice on concealed cistern installation

[optimystery]

Hi,

I am having a new bathroom installed and would like to save space (and avoid building a box) by using one of these: https://www.livinghouse.co.uk/acatalog/super-slim-concealed-cisterns-for-masonry-walls.html

The WC will be wall-hung and according to the product spec, only 9cm is needed which means the cistern can fit in the wall cavity.

I am in London and have had to do maintenance on the cistern a few times over the years, probably because of the very hard water here. Apparently access for these is done through the small push-button panel. I am wondering, for those who do this stuff professionally, is that a reliable system? Is the flush powerful enough? Do the push-buttons break?

If the small access panel is not sufficient, how would you go about designing access for future maintenance?

I am planning to tile the walls around the WC with 30x90cm tiles. Maybe a large removable panel would be needed?

Many thanks!

 

[cdbe]

I fitted one, there is no point making a bigger access hatch - all you will access is the plastic front of the cistern. The only thing I found hard to reach was the stop tap (blue/brass) where you have to put your hand through the access panel and out the top. I piped it up in a continuous length of 10mm plastic pipe so I had no hidden joints in the wall.

It's covered with 6mm cement board glued and screwed to the wall and tiled over.

 

[jeff the gasman]

View attachment 162956 I fitted one, there is no point making a bigger access hatch - all you will access is the plastic front of the cistern. The only thing I found hard to reach was the stop tap (blue/brass) where you have to put your hand through the access panel and out the top. I piped it up in a continuous length of 10mm plastic pipe so I had no hidden joints in the wall.
View attachment 162957

It's covered with 6mm cement board glued and screwed to the wall and tiled over.View attachment 162958

Nice job.

 

[optimystery]

Thanks, but I guess the only way to know is when there actually is a problem that needs fixing.
Like what happens if there is a leak?

 

[undertrained]

Thanks, but I guess the only way to know is when there actually is a problem that needs fixing.
Like what happens if there is a leak?

I wondered about that, and how would you access the syphon?

 

[cdbe]

Everything is designed to be accessable and replaceable from the hole in the front - it takes about 30 seconds to remove the flush plate and bracket. The cistern to flush pipe connection is designed in a way that it can't leak.