Clever spa do a insulation cover. Not that expensive and will pay for itself in 2/3 months
I have mine on thin yoga mats - are people saying it would make a significant difference to beef up the underneath mat? Currently about £3/day to keep mine hot - worth it for the kids they use it most days. Much cheaper to fill with hot water than warm from cold.
Your not wrong everytime I've been there it's poured down ;( . Beautiful scenery though could be in the Canadian Rockies if you didn't know better (y)
My local b and m had these in stock for £500 2 days ago
Then move to Scotland we have to much you can have some