My well has a bumpout on the cap, will the boshart cap work for this setup?

Yes, the Boshart well cap works with bump-out setups. Wiring exits through the bump-out, and the Simple Pump installs on top. Explore custom well caps on our site.

Simple Pump Team
9/18/2025
3 min read

If your well has a "bumpout" or offset on the existing cap (common for vented caps or electrical conduit), you may wonder if the Simple Pump's well cap will work. Here's what you need to know.

Understanding Well Cap Bumpouts

What Is a Bumpout?

A bumpout is a raised or offset section on a well cap:

  • Typically for venting
  • May house electrical penetrations
  • Allows wire passage to submersible
  • Provides additional clearance

Common Bumpout Types

  • Vented cap protrusions
  • Electrical conduit attachments
  • Offset bolt patterns
  • Raised center sections

Simple Pump Well Cap Options

Boshart Machined Cap

The Boshart machined aluminum well cap:

  • Sits on top of casing
  • Provides flat mounting surface
  • Accommodates pump head
  • May or may not work with bumpout

Sealed Well Cap

Alternative well cap option:

  • Different mounting configuration
  • May accommodate different setups
  • Discuss with technical support

Assessing Your Situation

Existing Bumpout Location

Where is the bumpout relative to:

  • Center of cap
  • Mounting area for Simple Pump
  • Available flat surface

Can Simple Pump Be Offset?

In some cases:

  • Pump head can be positioned away from bumpout
  • May require specific orientation
  • Depends on bumpout size and location

Solutions

Option 1: Replace Entire Cap

Most common solution:

  • Remove old cap with bumpout
  • Install Boshart cap designed for Simple Pump
  • Reroute wires through new penetrations
  • Clean installation

Option 2: Custom Mounting

In some cases:

  • Adapter plate may work
  • Custom fabrication possible
  • Spacers or extensions

Option 3: Pumping Through Existing Cap

If cap replacement isn't feasible:

  • May be able to modify existing cap
  • Drill appropriate hole
  • Install pump head mounting
  • Maintain weatherproofing

Wire Management

Submersible Wires

If replacing cap:

  • Wires must penetrate new cap
  • Use appropriate weatherproof fittings
  • Maintain electrical safety codes
  • Consider conduit requirements

Simple Pump Compatibility

The Boshart cap includes:

  • Provision for wire penetration
  • Weatherproof options
  • Proper sealing capabilities

What We Need to Know

To Assess Your Situation

Send us:

  1. Photos of current cap (top and side)
  2. Casing diameter
  3. Bumpout dimensions and location
  4. Current wire configuration
  5. Submersible pump present (yes/no)

What We Can Provide

  • Compatibility assessment
  • Recommended approach
  • Parts needed
  • Installation guidance

DIY vs. Professional

DIY Considerations

If comfortable with:

  • Well cap removal
  • Electrical wire handling
  • Weatherproofing
  • Following detailed instructions

Professional Help

Consider professional for:

  • Complex electrical rerouting
  • Unfamiliar well configurations
  • Code compliance concerns
  • Peace of mind

Common Questions

Will I Need an Electrician?

If rerouting submersible wires:

  • May need electrical permit
  • Follow local codes
  • Professional recommended for safety

Can I Keep My Old Cap?

Depends on:

  • Bumpout interference
  • Available mounting surface
  • Your specific configuration

What About the Pitless Option?

If using pitless adapter:

  • Well cap situation different
  • May simplify cap requirements
  • Discuss during quote process

Need More Help?

Our technical support team is here to help with any questions about your Simple Pump system.