Moved the Caleffi 533251 3/4 with manometer from the HW system to the incomer.
Turns out it was quite blocked. Fitted ~2012
Ordered another complete valve 533651 as it was the same price as just the cartridge, and gave me more options if my body was damaged. RX a 2018 vintage. Thanks.
Use molegrips on the bolt head to remove it. Tricky enough in the vice. Will need to jiggle it a lot and lever it with a screwdriver. Can be removed in situ ok. Not a lot of water inside.
Tidy enough. Wiped the body out and put in the new one. A smear of silicon. A bit of chrome missing. New one isnt chromed.
Cleaned the old one with carrefour descaler. 5 mins for the screen, and 2 x 5 mins for the body, turning it. Has dulled the brass. In future try half strength for 5 mins.
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