Overlooked Items During Home Inspection

[Joseph Kabaki]

I recently purchased my first property, and I'm not terribly excited about the home inspector's quality of work. The property has a few items that require attention including:

• Exposed wiring in the attic
• Insufficient amount of insulation in the attic (6in. versus recommended 18in.)
• The fact that there's a water heater in the attic (not disclosed anywhere in the home inspection)
• The bathtub faucet's water pressure diminishes to nearly nothing due after only a few seconds of it being on

The issues amount to roughly $2,000, but I'd like to seek out recourse given these issues should have been discovered during the home inspection. How should I proceed?