Massive Salt Buildup Around UV Lamp Sleeve

[Spartanwarrior]

Hey All,

Cleaned my UV a few weeks ago and replaced the lamp. It's been running for about a year.
I found caked on salt surrounding 75% of the acyrlic protective tubing.
Wondering if anyone has any idea as to why this happened. The Pentair Aquatics UV is hanging horizontally. Pumped by its own pump at around 85/100 gph.
I reinstalled it so that the outflow is bent a bit towards the sump, figuring the water was allowed to pool to much in the housing...but not so sure this is the cause b/c this particular UV can also be used vertically which would cause the water to pool way more.
At a loss...

 

[pecan2phat]

Have never seen that before!
Were you getting a decent output flow?

 

[Spartanwarrior]

Have never seen that before!
Were you getting a decent output flow?

definitely. never saw an issue even there at the end. i'm slated to check it out again in 2 months to make sure its not happening again.

 

[Rookie2reef]

looks like might have a leak

 

[thomashtom]

Hey Tim, i would also rule out a leak. Thanks

 

[Spartanwarrior]

looks like might have a leak

not sure how this would be caused by a leak? the water runs past this outside sleeve and is collecting salt somehow. you talking like an air leak?

 

[thomashtom]

Hey Tim, yeah didn?t think that through. Lol. Could be a restriction or a lack of flow? Something that would cause water to stayin unit. Maybe a problem with the pump? Thanks

 

[Potacka]

Are you sure it?s salt and not calcium?

 

[ecvernon]

I never seen that before.
Are there any dosing lines or effluent(kalk,calcium) near the intake?

 

[marrone]

I know on the old HW UV salt creep build up on the inside was common, the problem usually being the rubber gasket on the ends were shot and a small amount of water would leak.

 

[Spartanwarrior]

I never seen that before.
Are there any dosing lines or effluent(kalk,calcium) near the intake?

no dosing lines in a completely different chamber of the sump.

 

[Spartanwarrior]

Are you sure it?s salt and not calcium?

I was able to clean it off pretty easily with hot water but that's a theory for sure. did't do a taste test to see haha. if it happens again, ill have to inspect more closely.

 

[Spartanwarrior]

I know on the old HW UV salt creep build up on the inside was common, the problem usually being the rubber gasket on the ends were shot and a small amount of water would leak.

the buildup is on the side where the water passes through, not like the water is creeping or leaking into places it shouldn't be. think it may be time to contact BRS of Pentair themselves to dig deeper

 

[delv]

Double check the flow rate. It's the heat of the bulb precipitating out the calcium/carbonate. The bulb may be running hotter than it should.

 

[Spartanwarrior]

Double check the flow rate. It's the heat of the bulb precipitating out the calcium/carbonate. The bulb may be running hotter than it should.

Awesome response. Ill do that