Not a bad price off Daily Deals
http://www.ebay.co.uk/itm/5L-LITRE-MANUAL-KNAPSACK-GARDEN-PRESSURE-SPRAYER-SPRAY-KILL-WEEDS-/310617770648
I learned not to buy cheap sprayers they have all split on the seam at the bottom, got a hoselock one last year and still going strong..
i must agree steve.cooper pegler for me