old aqualisa aquavalve 400 connectors question

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Hi

Nasty old plastic-fronted off-cream (they call it white, and it might well have been 30 years ago) Aquavalve 400 concealed mixer unit in the bathroom, been there for decades I expect. I broke the temperature knob, and rather than just replace the knob the Mrs said "can't you replace it with something that looks a bit less horrible?". Of course, my sweet!, says I, anything for a quiet life you. Onto ebay, and a very-pretty-but-very-cheap chrome single-twisty-handle thing arrives in the post. Hurrah!

Sadly the connectors on the aquavalve appear to be aqualisa-specific, while the replacement is 1/2" BSP female. So I could rip out all the aqualisa-specific stuff that's there and replace it with 22mm piping and some couplers, but a) that seems like quite a lot of work and b) it'll cost about 3 times what the valve cost. Boo!

So I thought - bright idea! - I'll see if I can get an adaptor that converts the 1/2" female to whatever the aquavalve's connectors are. Winning!

Sadly there's nothing on the aqualisa site to tell me what the connector is, and I'd really rather have all the bits ready before I take the whole shebang apart, because thanks to the frankly odd way this old house is plumbed together it's a game and a half to figure out how to turn off the supply. So I thought, I'll see if anyone on the forums has more of a brain than I and can figure it out from the aqualisa site (or perhaps just knows already).

https://www.aqualisa.co.uk/shower-cartridge-body-plug-outlet-aquavalve-200-400.html

shower-cartridge-body-plug-outlet-017501.jpg


and the new valve, just because...

upload_2020-5-1_13-55-15.png


Any suggestions appreciated.

Cheers

Geoff
 

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I broke the temperature knob, and rather than just replace the knob the Mrs said "can't you replace it with something that looks a bit less horrible?"

What a shame. Is it too late for me to sell you a NOS Aqualisa mixer?
 
What a shame. Is it too late for me to sell you a NOS Aqualisa mixer?
Thanks for the post, but I'm gonna take a punt and guess that that's way more money than I'm able to spend: I could get a chrome+black replacement set of knobs for the 400 for about 40 quid, which would be the least-effort way to achieve something more pleasant than the aberration that's there at the moment.

The new valve on ebay was under a fiver, delivered (I did say it was very pretty and very cheap).
 
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