UV Sterilizer bulb usage

Ecotech Marine

DaddyFish

“5 percenter”
View Badges
Joined
May 6, 2020
Messages
1,010
Reaction score
1,322
Location
Dallas NC
FWIW -

AquaUV kinda dodged the question but said "we designed the unit to run 24/7 and that is our recommendation".

I don't really see any issues running it 12/hrs per day and your probably get 2x the life from the bulb....
One of the problems with cycling UV on/off is thermal expansion and contraction of the air surrounding the lamp. I have multiple tanks, all running UV, some run 12/24 some 24/24. The units that cycle off for 12-hours tend to draw in much more moisture/water around the quartz sleeve seal and into the lamp chamber.
That may not be an issue for AquaUV or other brands of choice, but so far it has been a real factor in longevity of my units.
 
Avast

Malcontent

Active Member
View Badges
Joined
Sep 20, 2018
Messages
235
Reaction score
214
UV lamp.png
 

DaddyFish

“5 percenter”
View Badges
Joined
May 6, 2020
Messages
1,010
Reaction score
1,322
Location
Dallas NC
I must turn the UV off during the daytime on one of my tanks. The only alternatives would be to use a smaller UV in a diverted and slower flow circuit or invest in both the cost and space requirement of a chiller, neither of which I want to do. The 36-watt unit I'm currently running on that tank will heat the tank to 83F with a 75F ambient room temperature. It would take a lot of 6-month UV bulb replacements to offset the cost of a chiller!
 
Fritz

zalick

A cup of water and a dash of salt
View Badges
Joined
May 29, 2014
Messages
1,557
Reaction score
1,772
Location
Portland
I didn’t know that the sleeve needs to be clean periodically! How to clean the sleeve?
I take mine out and soak in vinegar or citric acid. Then clean any deposits with a soft cloth. Don’t want to scratch it up. I think they need to be replaced periodically too if the get cloudy.
 
OP
justahobbyright

justahobbyright

Active Member
View Badges
Joined
Jan 21, 2021
Messages
183
Reaction score
88
Location
East Coast
I had been cleaning my quartz every 6 months. It always at that time had full precipitate build. I started checking at the 3 month mark. Same thing. I recommend cleaning every 3 months. It’s seems there’s been many months I have run the UV with it doing nothing because this full coverage build up.

I soak in either citric acid or vinegar for an hour then the buildup easily is removed.
 

canadianeh

Valuable Member
View Badges
Joined
Feb 28, 2017
Messages
1,568
Reaction score
1,019
I take mine out and soak in vinegar or citric acid. Then clean any deposits with a soft cloth. Don’t want to scratch it up. I think they need to be replaced periodically too if the get cloudy.
I had been cleaning my quartz every 6 months. It always at that time had full precipitate build. I started checking at the 3 month mark. Same thing. I recommend cleaning every 3 months. It’s seems there’s been many months I have run the UV with it doing nothing because this full coverage build up.

I soak in either citric acid or vinegar for an hour then the buildup easily is removed.
and you guys run your UV 24/7 like I do? If you do, when do you change your bulb?
 

StlSalt

Active Member
View Badges
Joined
Sep 30, 2020
Messages
484
Reaction score
621
Location
St. Louis, MO
and you guys run your UV 24/7 like I do? If you do, when do you change your bulb?
I run mine 24/7 and it seems like the accepted industry standard is to replace it once a year. I do replace the UV bulbs in both my tanks every year. This year I tried the cheaper bulbs you can find on Amazon and haven't noticed any differences as far as my tanks go.
 
Corals.com

canadianeh

Valuable Member
View Badges
Joined
Feb 28, 2017
Messages
1,568
Reaction score
1,019
I run mine 24/7 and it seems like the accepted industry standard is to replace it once a year. I do replace the UV bulbs in both my tanks every year. This year I tried the cheaper bulbs you can find on Amazon and haven't noticed any differences as far as my tanks go.
Can you share the link to Amazon?
 

Do you have ONE FISH that excels in all these attributes? Health, looks, temperament & activity.

  • YES (tell us in the thread)

    Votes: 151 82.1%
  • NO

    Votes: 31 16.8%
  • Other (please explain)

    Votes: 2 1.1%
MrReefs
Top