How to Seal Pool Light Cable

Cables are essential to the operation of a pool light. They carry power from an external transformer or breaker box, which is typically near the house. These cables extend underground and connect to the pool light fixture at some point along their path.

The cable carries electricity from the source to your light fixture so that it can be converted into usable light energy on demand by turning on your switch. Unfortunately, if these cables are not correctly sealed, they will eventually rust, and this corrosion will cause them to fail prematurely.

How to Seal Pool Light Cable

This blog post provides instructions for sealing pool lights with PVC sealant. So, this article is for you. You will learn how to seal pool light cable with just one simple trick!

8 Steps to Follow on  How to Seal Pool Light Cable 

Step One: Preparation

The first step in this project is to prepare whatever materials are necessary. The main idea is to have all the materials available before starting, so they do not get forgotten about or misplaced during work at any particular stage.

The first materials required are the pool light and the cable. Then all of the tools necessary to perform each task can be together. Once the materials and tools have been gathered, prepare for the jobs ahead with a clear mind and a work area with enough room to maneuver around.

Step Two: Ripping Open the Housing

The housing of the pool light must be open to reaching the cable inside. Once this is accomplished, the light can be removed from its position within the body of water and taken out of its enclosure. This will be conducted by using a flathead screwdriver to pry open the two halves of the housing.

Ripping Off Light Housing by Screwdriver

The screwdriver should be placed between the seam of each side’s lip and used to wedge them apart with some force until they come apart. It may take a few tries, but it will work without too much effort with enough pressure. A light tug on the cord will help to remove it from the enclosure as well.

Step Three: Removing Cable Connections

The next step is to remove each connection from both ends of the cable. This can be done by using a flathead screwdriver to pry apart each connector, just like the housing. When taking apart each connection, it may not be immediately clear which side is positive and negative.

However, most electrical connections are marked on both sides with small triangles pointing toward the wire that should be attached to the positive side of the battery. Therefore, the positive side will have an easily seen white strip running down the wire, while the negative may only show a small silver or copper trace along its length.

Step Four: Cutting the Cord

The next step in the process is to cut the cord. This will be done using a utility knife to make a series of cuts around half an inch apart and then tearing it down the middle until the two halves separate. When cutting, it is essential to make sure that all four wires are separated before continuing.

One method to accomplish this is by making single, vertical cuts down the cord until they are close enough to one another to be pulled apart with a slight tug on each wire. When cutting, care must be taken to cut the insulating sheathing and not any of the wires inside.

Step Five: Separating Cable Ties

At this point in the process, each wire should be separated and no longer held together by a bundle or cables ties. If there are any cables ties used, they will need to be cut apart. This can be done by using a pair of wire cutters or side cutters.

Each Wire Should Be Separated and No Longer Held Together

Once the ties are cut, they can be easily pulled apart until they are no longer wrapped around the set of wires. At this point, it is essential to organize each wire so that there are no crossed wires when they are reattached.

Step Six: Soldering Wires

If there were no soldering done in the previous step, it would now be necessary to solder each wire to its corresponding connector. This can be done by applying a small amount of flux to either side of the wire and then placing the tip of the iron on top of both sides at once.

While the iron is still in place, the solder should be touched to its tip so that it melts and covers both wires. When ready, give each wire a few seconds or so to complete this step before continuing along. Soldering will help ensure a good electrical connection between each connection piece.

Step Seven: Putting It Back Together

After the soldering is done, each wire should be placed back inside its cable ties and then re-tightened around one another. When tightening the cable ties, it is essential to ensure that they are not too loose or too tight.

A good method for doing this is to make them as tight as possible without putting too much pressure on the wires inside of them. If they are not tightened down enough, there is a chance that water may seep through and damage the electrical connections.

Step Eight: Reinstalling in Enclosure

The last step in this process is to reinstall each cable back into its housing. This can be done by first inserting the white wire into one half of the housing, followed by the black wire on the opposite side.

Enjoy Your New Pool Lighting System

Then, each red and green wire should be inserted into their respective halves before screwing both halves back together again with a flat head screwdriver. Now that you have read this article, you know how to seal pool light cable! Enjoy your new appliance.


If you want to prevent corrosion of your pool light cable, seal the end with PVC or silicone. These are two materials that will protect your equipment and keep it in good condition for years to come. In addition, we suggest sealing the connector at both ends before inserting it into a junction box.

This article has provided all of the information you need to know about buying and installing pool lights, so feel free to contact us if you have any additional questions! We hope you enjoyed this article on how to seal pool light cables.

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