We carry a variety of size replacement wands for Chapin sprayers which you can view by following the link below. The rule of thumb for most Chapin sprayers is to make sure if the handle is brass to get a brass wand/extension, and if plastic, match it to plastic. There are varying lengths and both straight and curved tip wands.
http://pestcontrol.domyownpestcontrol.com/search?w=chapin brass wand&view=grid
We have spoken with Chapin and they stated that the Chapin Stainless Steel Sprayer 2 Gal. (#1253) does not have a visible way to determine how much water is left in the tank.
The Chapin Stainless Steel Sprayer 2 Gal. (#1253) is a stainless steel tank, poly barrel with a brass wand, but the tube inside is plastic. We would recommend contacting Chapin first to confirm the type of oils you are going to use in the sprayer will not damage the seals or other parts. Chapin can be reached at 1-800-444-3140.
No, rubbing alcohol will likely corrode the gaskets and/or seals inside of the Chapin Stainless Steel Sprayer 2 Gal. (#1253) or any other metal sprayer. You can use either the Chapin Acetone Promo Sprayer 2 Gal. (26127) or the Chapin Industrial Acetone Hand Sprayer 48 oz. (10027) for rubbing alcohol.
We do not recommend using bleach in the Chapin Stainless Steel 2 Gallon (1253) tank as it could damage the seals. The Chapin Industrial Poly Bleach Sprayer 1 gallon (20075) is the only one we have that is recommended for bleach at this time. You should contact Chapin directly to find the best sprayer for your needs, and also to learn the proper cleaning techniques when using bleach in the sprayer. You can reach Chapin by calling 1-800-444-3140.