Connecting water inlet to cistern

[MoonMan2]

I am currently installing a toilet.

I will need to use a flexible hose to connect the water supply to the inlet of the cistern. As you can see the cistern input is on the opposite side from the water supply.

I am confused with amount of different flexi pipe hoses and different diameters, interfaces, male, female compression etc.

Could someone give me a link to the correct flexi hose to buy for this job?

 

[oldbuffer]

1. There is little point using a metric ruler on plumbing fittings. They are nearly all still Imperial, and the nominal sizes bear an unusual relationship to the physical size.
2. Nearly all toilet inlet valve shanks are 1/2" British Standard Pipe (BSP) thread although a few are 3/8" BSP. If you see "G1/2" on a fitting, this is 1/2" BSP and G3/8" is 3/8" BSP.
3. The fitting to go onto the shank is known as a tap connector, and will be 1/2" or 3/8" as appropriate.
4. The tap connector may be connected to the end of a flexi hose or to a rigid pipe:
4.1 If the former, then it will be crimped onto the end of the flexi.
4.2 If the latter it will be attached by a compression arrangement as part of the tap connector, or by soldering.
5. The other end of a flex hose may be terminated with:
5.1 A push fit connection to go onto a (normally) 15 mm pipe, with or without an isolation valve included.
5.2 A compression fitting (usually female) to fit onto the end of a pipe. Again an isolation valve may be included.
6. The other end of a rigid pipe will be terminated by the fitter. Compression onto an isolation valve, compression direct onto a pipe, or soldered to the pipe.
7. There should be an isolation valve fitted, either integral to the connector hose or fitted separately.

 

[Wayners]

Get some compression fittings and copper pipe and get going with DIY.
Elbow pipe and extend

 

[Madrab]

You have what's called a service valve - not to be confused with an isolation valve.

Easiest way I can think to do that is -

Isolate the cold mains water, or if you have a big tank in the loft then it may be fed from there - you'll need to check first.

Undo the service valve and replace with one of these, use a wrap or 2 of gas PTFE tape on the old olive.



Then get a female to female flexi pipe that's long enough to reach from that valve to the inlet of the toilet fill valve.

Fit to the fill valve first, taking care to getting the threads correct, then attach to the valve. Water back on.