There is no despatch notification on smaller items. Please allow 2-3 days for delivery (mainland UK). garden pond/fish breeding type shop possibly, they use large bore pipes and valves to control the water flow thru filters etc, Coolant hoses for commercial vehicles sound a possibility, though no doubt expensive if they operate under pressure. I expect I'll just stumble over something suitable at a car boot or junk shop. But it CAN'T be this difficult, surely... All I want to do is fix some flexible hose to the 68mm diameter gutter down-pipe exit with a hose clip and manoeuvre the hose round bends and squeeze through gaps into the water butt.

I turned up with a neat plan for my sewage system, with appropriate measurements etc at my local place and at another with a requirement for the plastic trays used for underfloor heating. At both I was treated with the sharp intake of breath, and at the first a screaming of abuse that (a) they didn't want to deal with me and (b) the drawing was all wrong because I hadn't shown every single length of tube with separate measurements for each length. When I pointed out that a run of 60 metres just meant that I wanted 10x6 metre lengths of tube I got more intake of breath and more insults. I went elsewhere. I have a bit of old guttering I want to fix to a shed to collect rain into a water butt. Buying downpipe, bends and joins isn't feasible as there is a tree in the way and too many turns. This system is compatible with most plastic systems manufactured to BS EN 12200. Please see compatibility guide As far as I previously discovered, fish-pond type hose comes in various diameters but no where near 68mm. But I'll have another look.I hesitate to say this, but it seems you're having trouble finding what you want, so... if you took 68mm downpipe and saw a spiral cut in it, it cant be bent to fit, then a layer of fibreglass & resin would skin it. Unless I've missed something really obvious, hours of web searching hasn't revealed anything suitable. Surely I'm not the only person who would find such a product very handy? I'm really surprised that what I thought would be a simple job has turned out so bothersome. I guess fire hose would be ideal - flat and flexible and in 100m reels... Where on earth can I buy flexible hose of this diameter? It doesn't need to be an exact fit - it's only a shed and I can bodge something I'm sure.