This sprayer is fantastic.  Put what you want to spray in the plastic bottle, set the metering dial to the correct amount to dispense (i.e. 1TBS/gal, 1tsp/gal...whatever)...hook up to the hose and spray.  Since no water enters the bottle you can return any leftover to the original package - I've never seen any other sprayer do this.  ...and does it reach 30ft.??  Yes it does when you remove the black deflector.  Just be sure to rinse it out well before putting it away.  I would HIGHLY recommend this sprayer...there is no 'waste' of product you are spraying, it is so easy to 'dial' the device to the correct dilution...I just can't say how happy I am with this product.  Add to that - it is MADE IN THE USA, lifetime warranty....what more can you as for???  Do not hesitate to buy this one.  ...I also bought the 'cheaper model'...spend the extra for this one!!  The other is very similar, but this one is so much better made.  Thank you AMAZON for another great product...and with Prime it was here in two days and at a lower price than a local store that supposedly carried it.