Removing the Quartz Tube

Before Servicing

• Disconnect power before proceeding.
• If the DEL AOP is installed below water level, the bypass valves must all be CLOSED to prevent excess pool water from draining into the open unit when a quartz tube is removed.
• AVOID TOUCHING THE UV LAMP GLASS WITH YOUR BARE HANDS. Oils on your hands can cause hot spots on the UV lamp and shorten its life. Use a soft clean cotton cloth or clean cotton gloves to handle the UV lamp.
• Follow the directions for use and handling of muriatic acid on the acid bottle label, being careful to protect your eyes, wear rubber gloves, and avoid breathing acid fumes.
• DO NOT USE ABRASIVE CLEANERS as they can scratch the high quality quartz glass.
• If broken glass is trapped in the pool system, do not operate the pool.

When to Replace the Quartz Tube

• The quartz tube(s) should be removed from the UV reactor every six (6) months and cleaned.
• If the quartz tube becomes dirty, its ability to transmit UV rays from the lamp will be diminished.
• Before continuing, allow adequate time for the quartz tubes to cool.

Drain Water

1. After allowing time for the quartz tubes to cool, drain the water from the UV reactor by removing the drain plug.
2. Replace the plug once water has stopped exiting the UV reactor.

Removing the UV Lamp Access Panel

The UV lamps are each housed in a quartz tube that protects the lamp.

1. Shut off power at the breaker.
2. Locate the UV lamp access Panel on the top of the DEL AOP, remove the 4 screws with a Phillips head screwdriver, and remove the panel.
3. Allow adequate time for the lamps to cool. Do NOT touch UV lamps with bare hands. Use a soft clean cotton cloth or clean cotton gloves to handle the UV lamp.

Removing the UV Lamp

1. Disconnect the lamp connectors from ballast wire connector.
2. Grasp the UV lamp wires and gently pull until the top of the UV lamp has pulled past the lamp retainer tabs.
3. While holding the UV lamp white ceramic cap, slowly pull the UV lamp until the bottom has pulled past the lamp retainer tabs. (Twisting the lamp may help facilitate removal.)
   • Do not touch glass, as oils on your hands will damage the bulb.

Removing the Quartz Tube

1. Using the hex key included in the parts bag, loosen the bottom lamp retainer screws two full rotations.
2. Grasp the quartz tube from the top of the UV reactor. Pull to remove it from the UV reactor.
3. Remove the sealing O-ring from the top of the quartz tube. Set aside in a safe place.

(O-Rings in the bottom endcap of the reactor do not need to be removed for quartz tube service.)

Cleaning the Quartz Tube

1. Clean the quartz tube exterior with a mild solution of muriatic acid (available at all pool supply stores) and water in a ratio of four parts water to one part acid (4:1). 
2. If lime or hard water calcium deposits are encountered, use a household tub and shower lime remover.
3. After cleaning the quartz tube, wash it off and wipe dry. Inspect the quartz tube for cracks.
4. Replace if cracks are found.
5. Make sure the inside of the quartz tube is dry before replacing the UV lamp(s). Do NOT touch UV lamps with bare hands.

Reinstalling the Quartz Tube

1. Hold the quartz tube so it is oriented straight up and down.
2. Insert the quartz tube into the UV reactor until it is fully seated in the bottom of the UV reactor.
   • If the end of the quartz tube is protruding from the UV reactor, the alignment is off.
   • Remove and re-insert the quartz tube to seat it properly.

Reinstalling the Quartz Tube

1. Place a sealing o-ring approximately 1/2in (12.5mm) from the end of the quartz tube protruding from the top of the UV reactor.
2. Place the lamp retainer over the quartz tube.
3. Use the hex key included in the parts bag to attach the lamp retainer to the UV reactor, using the lamp retainer screws and washers.
4. Make sure the lamp retainer flanges are fully seated against the UV reactor.

Check for leaks

Turn the circulation pump ON and check the quartz tube seal for leaks.

Turn the circulation pump OFF once you have confirmed that the quartz tube is not leaking.

Reinstalling the UV Lamp

Remember, do NOT touch glass, as oils on your hands will damage the bulb.

1. Confirm power is OFF at the breaker.
2. By holding the UV lamp white ceramic cap, slowly press the UV lamp fully past the lamp retainer tabs and into the quartz tube until it is seated on the lamp cushion in the bottom of the tube.
3. Connect the lamp connector to the connector on the ballast.

Reinstalling the UV Lamp Access Panel

1. Install UV lamp access panel on the top of the DEL AOP, using the 4 screws previously removed with a Phillips head screwdriver.
2. Turn power ON at the breaker.