hurdyho

Anybody know of any supplier that has any parts for this model spa and that ship to canada. These are the parts: Graystone Lid(SKU: 308706GS), Round Core and Standpipe Assembly with Valve F/A/R 2015(SKU: 361274RND)

Thanks for the info I was wondering if you know what is missing here in the pic below and why is there a screw. I suspect that it is to keep the diaphragm open.

I juste inherited a Aquarest Premium 500 spa and i would need to see if anyone has pics of the heating element or even a diagram of how it should all be connected. the previous owner seems to have tried to removed the heater from the spa. I would like replace the missing parts but I do not have the part numbers of what i am missing nor do known to connect it back up. any help would great thanks