SOLO418 One-Hand Pressure Sprayer Ergonomic Grip for Gardening, Fertilizing, Cleaning & General Use Spraying, 1 Litre, White and Red, White and Red

Q: How well does this spray "up"? I need a small sprayer that will get fungicides onto the undersides of two or three outdoor roses.

This sprays upwards very well. As long as it is cleaned after each use so it doesn't clog, and it's fully pumped up for pressure, it sprays as well upwards as it does downwards. I really like this sprayer.

Q: I am new to this product. Cani use chemical such as bed bugs spray on this product? Is it need to be washed thorughly after use of chemical spray?

clean the sprayer with borax ( think 20 mule team) immediately after using it for insecticide and then with soapy water and rinse, pumping the fluid out and shaking like crazy to provide agitation. that will remove most of the residue. the weed killer 24d is really hard to remove and then use some sudsy ammonia instead of borax with weed killers types. you really need several of these and dedicate them to similar uses cleaning as i described. (shaking your borax or sudsy ammonia - soapy water - rinse)

Q: can you use chlorine solution? Question answered. Thank you.

I see no reason why it would not work. I don't think I would leave it in the sprayer, but it should work. It handles Roundup well. We do not leave any thing in it. Mix only what you will use.