As you've been so helpful already..

[finchy01]

I'm being lazy as I'm sure MIs tell me somewhere.

Doing an install with an unvented cylinder (not a problem in itself) they also want a water softner, is it able to go through the softner before getting to the multi function valve or will it reduce the flow and pressure down too much?

 

[Scott_D]

Shouldn’t do if you get the high flow hoses

 

[ShaunCorbs]

Need a high flow softener