I have a large block-paved patio which is becoming rather an eyesore
with weeds and grass sprouting between the pavers. Can anyone
recommend a useful, moderately- priced spray gun and a weedkiller
which will do a permanent job of keeping the area weed-free? I have
just sprayed it with a couple of watering cans of Weedol which looks
like killing the top growth, but I need something a bit more permanent
and easier to cover the area quickly. I am not against poisonous
products.