Small update... I never posted the final picture of the workshop either:
However a small flood occured when the neighbor did some jet washing:
So a quick bodge got me through the night (as even rain overwhelmed it due to the soakaways being saturated:
Today I got 90% of the way through sorting the ACO drain out. At the moment this drain "goes nowhere" - it'll basically fill up and then overflow on the right hand side. Essentially, efficiently shifting the water from the real problem area and dumping it onto the patio which then has a fall to the garden.
Long term plan will see a step into the workshop anyway, and the rest of pad lifted - as the crazy paving annoyingly was done over the top of the previous patio........so the whole thing is about 150mm too high. Then I'll do a proper drain and soakaway crate into the garden.
I roped in my brother as he has all the gear, including this 58V beast.
Now the plan was to take up a foot of concrete at a time but the concrete was
super good so a quick trip to Jewsons was required:
This revealed a 6inch pad so the plan was to temporarily fit the ACO on a bed of gravel whilst I decide my next steps.
Went well past the building to fit the square end drain:
"Fin" (for now). Water will fill in the drain and then pop out the square at the end. The patio is then on a fall to the garden. Not ideal but no way to improve this "easily" at this stage. New patio will see the hardwork completed and connecting this up.