UV Installation in Reefer 350

[JoshKReef]

Couple things from the product manual, I'm not sure if this is a big deal but I don't think you're following their instructions on mounting vertically.

Vertical Mounting: Mount the SMART UV with the electrical end up. Use the bottom port as the inlet with the top port as the outlet.

I think your problem is the pump, I bet you aren't getting the right flow once you factor in the head pressure.

One way to rule that out would be to temporarily turn the UV horizontal so the water doesn't have to flow back up, and see how it performs. The only head pressure you will have at that point is the flow up to the UV, the pump won't have to work to pump the water back up 3-4 feet to get back to your sump.

 

[Brock0019]

Couple things from the product manual, I'm not sure if this is a big deal but I don't think you're following their instructions on mounting vertically.



I think your problem is the pump, I bet you aren't getting the right flow once you factor in the head pressure.

One way to rule that out would be to temporarily turn the UV horizontal so the water doesn't have to flow back up, and see how it performs. The only head pressure you will have at that point is the flow up to the UV, the pump won't have to work to pump the water back up 3-4 feet to get back to your sump.

sadly making it horizontal at this point won't happen as its hard plumbed. the ports are as described in the instructions, the pump is a mighty jet (326 one) and its not turned up all the way. I am shooting for between 157-262 for my flow and I'm pretty sure im in that range, I could turn it up all the way but I imagine that'll just take more water from the sump section making the water level lower. hard to truly tell though about the flow.

 

[JoshKReef]

I can't really understand how that's possible, unless your return pump is pushing less water than you're taking out for the UV.

I didn't mean do that permanently, I meant trying the same setup with flex tubing, but without the need to pump it up 3-4 feet and through 4x 90 degree angles.

 

[Brock0019]

I can't really understand how that's possible, unless your return pump is pushing less water than you're taking out for the UV.

I didn't mean do that permanently, I meant trying the same setup with flex tubing, but without the need to pump it up 3-4 feet and through 4x 90 degree angles.

yeah its not making sense to me as well, and im sitting infront of it.
I have a Octo varios 8 return pump going 100%.
from the UV pump to the sterilizer there are 2 90s, and I guess a third once it get is to be pushed up.

im going to run the UV pump at 100% for the night and see if it makes any difference.

 

[PhilT]

Well depending how low it is when the uv is off ( I assume you mean it’s pump?), you do t want the ATO adding RO water and lowering your salinity.

 

[Brock0019]

Well depending how low it is when the uv is off ( I assume you mean it’s pump?), you do t want the ATO adding RO water and lowering your salinity.

Right. I should have said I have the UV pump tied to the main return so if that’s powered down or shutdown cause of water level, the UV(pump and light) will power off as well