The 9 inch telle is worth more than the jaguar.
You have missed the absolute basic after spending a lot of time and money on your design and that is is the appliance good enough to supply my needs.
Change it for a 37 or 42 kw combi if your wanting your body jets to work as they are meant to . That is after making sure you actually have enough cold mains pressure
You must have spent a fortune on your 9" then mate! (lol). Thanks for the advice on the 37 or 42 though. In addition, I think the MP could be a problem - any solutions?