Capping Water Hose to Toilet (Temporarily)?

OneSullenBrit

Hi. I have got a problem with my toilet, the innards of the cistern are !!!!!!ed up. When you flush it will either work fine, it won't stop filling, it won't fill at all, or it will just run out and keep trying to fill. It seems like the parts are universal, and Screwfix do a complete set for about £18. It should be a quick fix, but until I take it apart I won't know if I can replace the parts, or if the old parts will even go back on. Obviously I'll turn off the mains water to fix it, but if it can't be fixed I need a way to stop the cistern filling when the mains goes back on.

Sooo, long story short, is there a way to cap the flexible braided hose that fills the cistern? It has a screw end. I thought about an isolator valve, but I can't seem to find one that would fit the screw fitting.

Cornucopia

Assuming that you are talking about a standard 0.5 inch inlet to the toilet cistern, and a braided hose with a captive nut, then something like this?



https://www.screwfix.com/p/male-flanged-plug-x/98635


Toilet cistern parts come in two pieces, and if only the inlet valve needs replacing I would recommend only doing that, and not replacing the flush unit, which can be a more difficult job with more compatibility issues.

Ideally take the old inlet valve to the shop (even Screwfix are usually very helpful) and match the old and new as best you can for overall size, shape and dimensions of the inlet pipe.

If you want to fit an isolator valve, you'll possibly need additional hardware to match the pipe diameters (half inch at the end of the flexible hose, and 15mm or 22mm for the isolator valve).

Owain_Moneysaver

It slightly depends on what sort of screw end.

If it's screw-to-copper-pipe that's a compression fitting and you'd need a compression end cap eg
https://www.screwfix.com/p/15mm/55441 for 15 mm, or 80500 for 22mm fittings.
which goes on the exposed end of the compression fitting when you remove the pipe and nut (compression threads usually have a fairly sharp feel to the end of the fitting as they compress against an olive)

If it's screw-to-threaded fitting that's a BSP fitting and you'd need a BSP blank nut eg
https://www.screwfix.com/p/bsp-blank-nut-x/39553 for 3/4 inch, which is about 2p sized or used for washing machines. Shower hoses are 1/2 inch or about 1p sized. BSP threaded ends usually have a flat feel as they compress against a washer.

You should also fit a service valve in so you can cut off the water to the cistern for servicing in future. You can get them compression-compression or compression-BSP as needed. You can also get flexi hoses with a valve built in at one end.

Ruski

A 'normal' slotted quarter turn isolator can be used as a temporary measure - just dont over tighten it

HTH

Russ