Toilet Part Idenity Parade + Odd Shower Problemo

[WaterTight]

Toilet 1. Pics 1+2
Need to replace inlet valve. It is fed by a smaller than 15mm pipe (don't know if it's 10mm or 12mm as unused to using sizes.) A search online for 'Kiwa Maximum' hasn't had much success.
1. Anyone know what it is or what would fit instead?
2. The nut looks like half inch. Could I just join a different inlet in there and hope for best? And maybe have an extension piece incase it's too short?


Toilet Two. Pics 3,4+5
Air Type (?) push-button flush valve.
Not had any dealings with these sort before. When you press the flushing part on the valve inside the cistern down by hand it flushes but the button no longer flushes it. It looks like there's a sort of mini concertina part on the end of the tube that is meant to press the valve down. I guess it needs replacing.
1. Does it? Or has it dislodged in some way?
2. Anyone know what this part is called and where I can reorder it? The cistern is by Grohe. The only writing anywhere that I could see was on the backnut of the button which was a serial number: 6442 BCCA A000.


Odd Shower Problemo
Anyone know what might cause a shower, once swithced off after use - and left for 5, 10 mins - to let forth with a good few moments of further shower - and then stop again. And not repeat until after next usage?


Many Thanks Plumb-Chums

 

[Puddle]

Try here

Spares online for Grohe cisterns

under bellows is a little lug that fits on syphon but bellows do split

ball valve here as well I think

 

[REDSAW]

damn!.... beat me to it.
last one i bought was £26, didnt know you could get the bellows on its own.
remember next time.

 

[WaterTight]

Thanks for the link.

Couldn't find the float valve on that site. Anyone got any idea whether I'd get away with just attatching something like a fluidmaster side entry straight onto the existing nut? Or might it be some funny european size?

 

[WaterTight]

Anybodddddddddddy?????

 

[WaterTight]

Think I've found something that looks very similar. It's listed as a Siamp. The one I'm looking to replace had Kiwa Maximum written on it which I thought was the product name. Googling as indicated that Kiwa is a foreign (maybe French) verison of WRAS. What do you reckon are these the same valves?

There's a half inch one offered with a short plastic thread but the eurpoean 3/8ths size has long metal thread so I guess it must be 3/8ths....