Porti will do with a wet pickup wand, in an ideal world you need some good psi but upgrades come when you can see which way the work is coming, Nulife in Stockport looks good, I've never met or spoke to Kev?? who Derek knows I think they use the stone school in Stoke, I've met Keith Roberts briefly and he comes across as knowing his stuff but for me he goes around the houses and knows how to large the part up where I like to get stuck in. I think Kev does Aquamix which is supposed to be the brand leader but stand to be corrected on that.
Shaun