1. Which Series Should Be Used On Water Features?
2. Can The EA Series Be Submersed In The Water?
3. What Is The Maximum PSI (Bar) Operating Pressure Allowed?
4. What Considerations Should Be Made For Salt Water Installation?
5. Can The UV System Be Operated Continuously?
6. Can Tue UV System Be Installed Below The Water Level Of The Water Feature?

Which Series Should Be Used On Water Features? – The decision on which Series to use depends upon the physical space available for the unit, and the flow rate of the water through the UV unit. If Salt Water is used in the water feature, then the E Series is recommended as it is 100% PVC construction and is not subject to metallic corrosion as no metal is used. Beyond that, the installer should simply confirm the pump flow rate, then check the sizing charts on this website.


Can The EA Series Be Submersed In The Water? – Yes, however the plug-in power supply on the end of the power cord must be installed in a dry place. The ability to submerse the UV unit itself in the water opens a lot of installation options for the variations found in water features. Here again, the maximum allowable flow rate of each model must be observed in order to achieve proper sanitation.


What Is The Maximum PSI (Bar) Operating Pressure Allowed? – All Delta UV Systems are rated at 40 PSI ( 3 Bar) operation range. All Systems have a very minimum head loss through the unit, usually less than 1 PSI (.34 Bar)


What Considerations Should Be Made For Salt Water Installation? (See # 1 above) In addition, if the installation is very near a salt water body (ocean etc), the salt spray and the normal salt water environment found will be tough on the stainless steel exterior of all units, except the E series, even though the water being sanitized is fresh water.


Can The UV System Be Operated Continuously? -Yes, all Delta UV systems are designed to allow for continuous use. The High Output UV lamp in all Delta UV Series systems are rated at 9000 hours (one year) of continuous use. It is important to change the bulb after 9000 hours, as the output of the bulb is no longer capable of providing proper bacteria kill after 9000 hours as it has reached its useful end-of-life (EOL).


Can Tue UV System Be Installed Below The Water Level Of The Water Feature? – Yes. All systems except the EA Series have a built-in pressure sensor to shut the system down if the pump stops (as in time clock operation of the circulation pump). When installing a unit below waterline, some adjustment of the pressure switch may be required. Consult the applicable Series Owner Manual in the DOCUMENTS section of the CUSTOMER CARE link for information on installation below waterline. Once the pressure sensor issue is addressed, all Series units will function below waterline the same as they would if installed above waterline.