Cleared out a customers gutter with Vac a few months ago. Its a 4 in the block and I only clean one side. I think the other ones are by2let going by the condition of their gutters. My customer wants me now to fit a divider so their moss and sand doesn't flow into his gutter. Thought it was a big job cutting the gutter and fitting 2 external stop ends. Then I realised if I grind the edge off an internal stop end I could fit in place with CT1 and 2 small screws will hold till set. Did that today and took 5mins a side, took a photo so my customer could see it.
Handy if anyone does gutter repairs.