diy : washing machine/dishwasher pipe connector (Tee Valve 15 x 15 x 3/4")

me rambling about :
compression Tee Valve 15mm x 15mm x 3/4" to fit dishwasher to water supply ( dishwasher / washing machine hoses usually have a 3/4" hose connection).
If you want to fit a washing machine on the same line, you need a 3/4 x 3/4 x 15mm tee valve (probably).

Also I fit an ISOLATION VALVE onto the tap line.
This would be male to male connection, so instead I needed an unusual valve, 1 with a female connector.

COMPRESSION valves have OLIVES in them, which warp when you tighten the nut. This makes it water-tight. So the valves are usually metal.

Dishwasher / washing machine hoses tend to use 3/4" hose connectors

Project is currently abandoned as current fitted tap nut is seized :(  

imho :
better to replace with PUSHFIT connectors where you can.