Okay, this is a tricky situation with conflicting information and a resistant installer. Let's break it down and figure out the best (and safest) approach.

Understanding the Issues Metal Shell & Bonding

You are correct. A metal pool shell must be bonded. Bonding is crucial for electrical safety. It equalizes electrical potential, preventing shocks if there's a fault.

Four Points of Bonding

The concept of four points is based on older code requirements or a specific local amendment. Modern codes typically require at least one point of connection with a bonding grid encircling the pool, but additional points are never a bad idea, especially on larger pools.

Epoxy Legs & "No Metal"

The epoxy legs are not part of the bonding equation. They're likely there for structural support and insulation. The issue is the metal shell. The bonding is to the shell, not the legs.

Installer Resistance

This is the biggest challenge. He is potentially creating a liability for himself, and definitely for you. "No one does that" is never a valid reason to disregard safety requirements.

Why Your Proposed Solution Makes Sense (and why it might worry him)



Bonding to the Shell

Your idea to drill into the metal shell is the correct approach to electrically bond the shell of the pool.

Low Point Location

Using the low point where the sand cove is created is smart. It keeps the connection out of direct contact with the liner, reducing the risk of abrasion or damage.

Lugs & Nuts Behind Liner

Protecting the liner is important, and your method of encapsulating the nuts within the sand cove helps achieve that.

Why he is worried

Drilling into a metal pool shell is usually seen as a bad thing because the shell has been powder coated for protection. By drilling into the shell he is worried about rust causing a failure down the road.

The Problems with the Current Setup (Assuming it's ONLY one #4 Bond Tail)



Insufficient Bonding

One bond tail might be insufficient, depending on the pool's size and local code.

Risk of Corrosion

The connection point must be robust and protected from corrosion. A simple tail wire may not be adequate in the long run, especially if not properly secured.

Steps to Take (in order of Importance)


Stop the Installation (if possible)

Politely, but firmly, explain that you need to address the bonding issue before the pool is fully installed. Emphasize that it's a safety concern and a code requirement.2.

Consult Local Electrical Codes



This is absolutely crucial. Call your local building department or a qualified electrical inspector. Ask about the specific bonding requirements for above-ground metal pools in your area. Get it in writing if possible. This is the ammo you need to convince the installer (or, if necessary, hire someone else).3. Involve an Independent Electrician

Hire a licensed electrician experienced in pool bonding. They can: Inspect the pool and the installer's proposed setup. Advise on the correct bonding method according to code. Provide documentation and certification that the pool is properly bonded (critical for insurance and resale). Perform the bonding work themselves, if the installer remains resistant.4.

Document Everything

Keep records of all conversations, emails, and code information. Take photos of the installation process. This is for your protection.5.

Negotiate with the Installer (with Expert Backing)

Armed with the code requirements and the electrician's recommendations, try to reach a compromise with the installer. Be prepared to pay extra for the additional bonding work, but make it clear that safety and code compliance are non-negotiable.6.

Consider Alternatives (If Necessary)



Hire a different installer

If the original installer refuses to cooperate and the electrician confirms the bonding is inadequate, you may need to find someone else. It's better to delay the project and do it right than to risk safety.

Regarding Your Proposed Solution (with some modifications)

Your idea is sound, but here are some refinements:

Use Stainless Steel Lugs & Hardware

Stainless steel resists corrosion much better than regular steel.

Grounding/Bonding Compound

Apply an anti-oxidation/grounding compound (like Noalox) to all connections between the lug, the shell, and the bonding wire. This further prevents corrosion.

Secure the Lug

In addition to the nut, use a star washer or locking washer to prevent loosening.

Seal the Hole

After tightening everything, use a waterproof sealant (like silicone caulk) around the hole and the lug to prevent water from getting between the lug and the shell.

Sand Encasement

Ensure the lug and nut are completely buried in the sand cove, with no direct contact between the metal and the liner. Use extra sand to create a buffer.

Legal/Liability Considerations

If the installer refuses to bond the pool properly and you proceed anyway, you could be held liable if someone is injured due to an electrical fault. That's why getting it done correctly by a qualified electrician is essential.

In summary: Do not let the installer skip proper bonding. Get a second opinion from a qualified electrician, and make sure the pool is bonded according to code. Your family's safety depends on it. Flag for review