Del Spa Ozone Maintenance
Ozone has been used in spa and hot tubs for years, as a powerful sanitizer that kills 99.9% of pathogens and contaminants.
When used with a spa mineral stick, an ozonator can do the bulk of spa water sanitizing, requiring only a small amount of bromine, and/or regular spa shock to oxidize organics that hide in small spaces, away from the ozone.
BUT - Ozonators Wear Out! They need to be rejuvenated or renewed - by replacing the ozone bulb, chip or electrode. In addition, hoses, injection fittings and check valves also need regular replacement.
Hot Tub Ozone Maintenance:
You can do your own spa and hot tub ozone maintenance. A screwdriver is usually all that's needed, and directions for repair or replacement of a spa ozonator are simple and easy to follow, even if you are repair-challenged!
Replacing Ozone Hose:
Ozone is a very powerful gas that breaks down the ozone tubing over time. Nitric acid is created in small amounts, and within 2 years the hose will begin to weaken so much that a hole will burn right through it, spilling ozone into the spa cabinet. Inspect the hoses twice per year, visually for any staining and by hand for thin spots. Ozone Hose Lifespan: 1-2 years.
Spa Ozone Check Valve Maintenance:
A Check Valve is a one way flow valve, allowing the ozone to travel in one direction only. It connects in the hose between the ozonator and injector. Ozone Check Valves can only be installed in one direction (in the direction of the Flow --> arrow). Eventually, the check valve will need to be replaced (with an exact duplicate) or it can damage your ozonator by allowing incorrect ozone flow. Ozone Check Valve Lifespan: 1-2 years.
Spa Ozone Injector Maintenance:
The ozone injector is usually a small 3-way manifold or Tee, which fits into a larger 3/4" or 1" hose. In the middle is a smaller hose connection, where the ozone hose is attached. Injectors don't commonly fail, but they do clog quite often. If you have no ozone bubbles in your spa, chances are you have a clogged ozone injector. They can clog with calcium or chemical build-up, and block the flow of ozone bubbles, which usually enter at a floor spa jet.
To clean a clogged ozone injector, remove the hose and hose fitting from the injector. With the spa running, simply insert a bent paper clip or tiny eyeglass screwdriver and move it back and forth to break up and suck in any crusty deposits that block ozone from flowing into the injector. Then reconnect the ozone hose and you should see ozone bubbles in the spa again. Ozone Injector Life Span: 10 years.
Spa Ozone Generator Renewal:
The engine of a spa ozone generator, the device that actually creates O³ from O² eventually wears out and will need to be replaced. Be prepared for the day when the ozone bubbles stop suddenly, and your spa water grows quickly dark and turbid.
Spa ozone is created in 2 ways - with a UV bulb or with Corona Discharge, which creates a small electrical charge to create ozone, like a tiny lightning bolt. Corona Discharge (CD) units are powered by a chip or electrode. CD units last much longer than UV bulbs, but newer models can last over 5 years.
UV Ozone Bulb Replacement: If you no longer see the eerie blue glow coming from the inspection port of your long, tubular ozone bulb housing, check that it is still plugged into a power outlet. If all good, order the exact replacement bulb, if still available. Actually, a better recommendation would be to replace the outdated bulb unit with a longer lasting CD unit. Ozone Bulb Life Span: 1-2 years.
Corona Discharge CD Chip Replacement: After several years, the CD chip will wear out on ozonators like the Spa Eclipse. It will wear out especially fast if you are running the circulation pump 24 hrs per day. Whenever the pump is running, CD chip ozonators produce ozone. Replacing a CD chip on a Del Spa Eclipse is very easy. Simply unplug the power cord to the unit and remove the back screws. Locate the CD chip, in the bottom of the case, and disconnect the wire plugs. Reconnect the new cell the same way, and you're back in business! Del Ozone CD Chip Life Span: 2-3 years.
Corona Discharge Ozone Cell Replacement: The Del MCD-50 ozonator uses an electrode that can last much longer than the CD chip used in the Spa Eclipse. But eventually it too will wear out, and it has an indicator light to let you know. Renewal kits for the MCD-50 include a new Ozone Cell, Power Supply, Hose Barb, O-ring and Fuse. Pull off the cover (with the power off), and you can replace all 5 parts in under 5 minutes, OK, maybe ten. Replace the front cover and test it out. MCD-50 Cell Life Span: 3-5 years.
Spa Eclipse NEXT GENERATION uses the new APG technology - Advance Plasma Gap. The latest and greatest spa ozonator, it has more ozone output and last longer than its predecessors. It also has an auto voltage sensor, so you can connect to 115V or 230V without switching wires or settings. The maintenance to the Next Generation ozonators is the same for hoses and check valves, but the AGP cell is not sold as a part, you just replace the entire box, which is a small job of unmounting and remounting, and connecting the hoses and wire plug. APG Module Life Span: 4-6 years.
How to Know if a Spa Ozonator is Working?
- Ozone bubbles are visible in the Spa, at a lower jet, or the heater jet, usually.
- Ozone smell when you open up the spa cover after being closed for some time.
- Indicator light on the ozone module, as a visual indicator of operation.
- Test it with the new Del Ozone test kit.
Spa Ozonators don't last forever! If your spa ozonator troubleshooting has led you to this page - consider the possibility that your ozone device (bulb, chip, electrode, cell) is no longer producing ozone. They don't go bad gradually, they go all-of-a-sudden. One evening you'll lift the spa cover and discover dull and lifeless spa water. Shock the spa and order your spa ozone parts, hoses and check valve - to keep your ozonator running in top condition!
And remember, you don't have to stick with the branded ozonator that came with your spa (it was probably made by Del anyway!).
Hot Tub Works